Alcohols Phenols And Ethers MCQ Questions

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Alcohols Phenols And Ethers Questions and Answers

Alcohols Phenols And Ethers Quiz Question Answer
What reaction does hydroquinone undergo most readily? Oxidation
The enzymes which are used to convert starch into ethyl alcohol are diastase, maltase, zymase
Ethylene can be converted into alcohol by treatment of H2SO4 as catalyst
The alcohol obtained by the hydrolysis of oils and fats is glycerol
In the conversion of ethanol into methanol which of the following reagents will be used? All of these
Argol, a brown crust, formed during the fermentation of grape juice contains potassium hydrogen tartarate
Ketone upon treatment with Grignard reagent gives tertiary alcohol
In fermentation by zymase, alcohol and CO2 are obtained from glucose
Grignard reagent reacts with HCHO to produce primary alcohol
Ethyl alcohol can be prepared from Grignard reagent by the reaction of HCHO

Aldehydes Ketones And Carboxylic Acids MCQ Questions

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Aldehydes Ketones And Carboxylic Acids Questions and Answers

Aldehydes Ketones And Carboxylic Acids Quiz Question Answer
Calcium formate on distillation gives HCHO
The catalyst used in Rosenmund reaction is Pd/BaSO4
Stephen's reduction is used to prepare aldehyde from alkyl cyanides
Which of the following isomerism is shown by ethyl acetoacetate? Keto enol tautomerism
Ethyl benzoate reacts with PCl5 to give C2H5Cl + C6H5COCl + POCl3
Benzaldehyde reacts with methyl amine to give C6H5CH =NCH3
Which of the following gives an aldehyde on dry distillation? Calcium formate + calcium acetate
Collin's reagent is used to convert —CH2OH→CHO
3-pentanol on reaction with aluminium tertiary butoxide in the presence of acetone gives 3-pentanone
When CH2 = CH — O — CH2 — CH3 reacts with one mole of HI, one of the products formed is ethanal

Analytical Chemistry MCQ Questions

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Analytical Chemistry Questions and Answers

Analytical Chemistry Quiz Question Answer
MnO2 and H2SO4 added to NaCl, the greenish-yellow gas liberated is Cl2
Which of the following doesn't give a ppt. with silver nitrate solution? Ethyl bromide
What colour is imparted into the flame when lithium is burnt? Crimson red
Which of the following radicals gives the apple green flame during flame test ? Ba2+
Borax bead test of Cr (chromium) is blue
The yellow precipitate formed during the chromyl chloride test is chemically lead chromate
The incorrect statement in respect of chromyl chloride test is liberation of chlorine
In the brown ring test, the brown colour of the ring is due to ferrous nitrososulphate
Brown ring is made for
Chemistry-Analytical Chemistry-877.png
Silver chloride dissolves in aqueous ammonia due to formation of [Ag(NH3)2]+

Biomolecules MCQ Questions

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Biomolecules Questions and Answers

Biomolecules Quiz Question Answer
α-maltose consists of two α-D-glucopyranose units with 1-4 glycosidic linkage
Number of chiral carbon atoms in β-D-(+)- glucose is five
Sucrose on hydrolysis gives glucose and fructose
In aqueous solution glucose remains as in all three forms in equilibrium
How can you say that glucose is cyclic compound? Glucose fails to react with sodium hydrogen sulphite
Which of the following pairs give positive Tollen's test? Glucose, fructose
Which of the following compounds does not undergo mutarotation? Sucrose
If two isomers have been classified correctly as anomers, they may be also called diastereomers
The carbohydrate used as storage molecule in animal is glycogen
The monosaccharide constituents of lactose are β-D-glucose and β-D-galactose

Chemical Bonding And Molecular Structure MCQ Questions

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Chemical Bonding And Molecular Structure Questions and Answers

Chemical Bonding And Molecular Structure Quiz Question Answer
Which one of the following molecules will form a linear polymeric structure due to hydrogen bonding? HF
Which of the following is the electron deficient molecule? B2H6
Which of the following represents the Lewis structure of N2 molecule?
Chemistry-Chemical Bonding and Molecular Structure-1105.png
A coordinate bond is a dative covalent bond. Which of the below is true ? Two atoms form bond and one of them provides both electrons
Which one of the following molecules has the smallest bond angle? H2 Se
The percentage s-character of the hybrid orbitals in methane, ethene and ethyne are respectively 25, 33, 50
Which of the following hydrogen bonds are strongest in vapour phase? HF......HF
Which of the following is electron - deficient? (BH3)2
The molecular interactions responsible for hydrogen bonding in HF dipole-dipole
The correct sequence of increasing covalent character is represented by NaCl < LiCl < BeCl2

Chemical Kinetics MCQ Questions

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Chemical Kinetics Questions and Answers

Chemical Kinetics Quiz Question Answer
Rate of reaction depends upon All of these
The unit of second order reaction rate constant is L mol-1 s-1
The half-life of a reaction is halved as the initial concentration of the reactant is doubled. The order of the reaction is 2
For a first order reaction the ratio of times to complete 99.9% and half of the reaction is 10
A first order reaction is 60% complete in 20 min. How long will the reaction take to be 84% complete? 40 min
A reaction proceeds by first order, 75% of this reaction was completed in 32 min. The time required for 50% completion is 16 min
For a reaction, the rate constant is 2.34 s-1. The half-life period for the reaction is 0.30 s

Chemistry-Chemical Kinetics-1497.png		 third
Inversion of cane-sugar in dilute acid is a pseudo-unimolecular reaction
For which order half-life period is independent of initial concentration ? First

Chemistry In Everyday Life MCQ Questions

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Chemistry In Everyday Life Questions and Answers

Chemistry In Everyday Life Quiz Question Answer
What are the substances which mimic the natural chemical messengers? Agonists
Use of chemicals for therapeutic effect is called chemotherapy
Which of the following is antipyretic and analgesic? Paracetamol
Paracetamol is N-acetyl p-amino phenol
Chloramine-T is a antiseptic
Aspirin is an acetylation product of o-hydroxybenzoic acid
Tranquillisers are also known as psychotherapeutic drugs
Which one among the following is not an analgesic? Valium
Which among the following is not an antibiotic ? Oxytocin
Which of the following is used as a morning after pill ? Mifepristone

Class 11 P Block Elements MCQ Questions

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Class 11 P Block Elements Questions and Answers

Class 11 P Block Elements Quiz Question Answer
Dry ice is solid CO2
Correct formula of aluminium nitride is AlN
The ratio of Fe2O3 and Al by weight in thermite is 3:1
Magnalium contains Al + Mg
Aluminium reacts with caustic soda to form sodium metaaluminate
In diborane the two H—B—H angles are nearly 97°, 120°
Water gas is an important fuel. It is a mixture of : CO + H2
Muddy water can be purified through coagulation by using alums
Aluminium is extracted by the electrolysis of alumina mixed with molten cryolite
Which of the following structure is similar to graphite? BN

Class 12 P Block Elements MCQ Questions

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Class 12 P Block Elements Questions and Answers

Class 12 P Block Elements Quiz Question Answer
SO2 + H2S → Product. The final product is H2O + S
Crystalline metal can be transformed into metallic glass by Very rapid cooling of the molten metal
Which metal is protected by a layer of it own oxide Al
The product formed in the reaction of SOCl2 with white phosphorus is PCl3
Which has the smallest size ? P 5+
Solid N2O5 is ionic
Which of the following phosphorus is the most reactive ? White phosphorus
Which one of the following is least covalent in nature ? BiF3
Which of the following oxides, at the same concentration when dissolved in water, results in the most acidic solutions ? N2 O5
Which is the anhydride of nitric acid ? N2O5

Classification Of Elements And Periodicity In Properties MCQ Questions

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Classification Of Elements And Periodicity In Properties Questions and Answers

Classification Of Elements And Periodicity In Properties Quiz Question Answer
The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of Na+ will be - 5.1 eV
Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides? Al2O3 < MgO < Na2O < K2O
The telluric helix was given by De Chancourtois
Number of elements presents in the fifth period of periodic table is 18
The element Z = 114 has been discovered recently.

It will belong to which of the following family/group and electronic configuration ?

 Carbon family, [Rn] 5f 14 6d10 7s2 7p2
An element with atomic number 21 is a transition element
The electronic configuration, 1s2, 2s2, 2p6, 3s2, 3p6, 3d9 represents a metallic cation
Differentiating electron in inner transition elements enters the ________ orbital. f
In the periodic table metals usually used as catalyst belong to d-block
Which of the following electronic configuration represents noble gas? ns2 np6

Coordination Compounds MCQ Questions

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Coordination Compounds Questions and Answers

Coordination Compounds Quiz Question Answer
Benzoylacetonato beryllium exhibit isomerism of the type optical
The oxidation state and covalency of Al in [AlCl(H2O)5 ]2+ , respectively are +3, 6
What is the oxidation number of Pt in K[PtNH3 Cl5] ? ? +4
EDTA can form complex with how many number of donor atoms ? Six
Which of the following is a negatively charged bidentate ligand ? Dimethyl glyoxime
Oxidation state of Fe in [Fe(H2O)5 NO+ ]SO4 is 1
A group of atoms can function as a ligand only when it has an unshared electron pair
The oxidation state of Fe in the brown ring complex [Fe(H2O)5NO]SO4 is +1
The name of the ring structure complex compound formed between metal ion and polydentate ligand is chelate complex
Which of the following system is most stable for a chelate ? Five fused cyclic system

Electrochemistry MCQ Questions

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Electrochemistry Questions and Answers

Electrochemistry Quiz Question Answer
The specific conductance (κ) of an electrolyte of 0.1 N concentration is related to equivalent conductance (Ʌ) by the following formula Ʌ = 10000 κ
The resistance of 1N solution of acetic acid is 250Ω, when measured in a cell having a cell constant of 1.15 cm-1. The equivalent conduction (in ohm-1 cm2 equiv-1) of 1N acetic acid is 4.6
The one which decreases with dilution is specific conductance
Given the limiting molar conductivity as
˄0m (HCl) = 425.9Ω-1 cm2 mol-1
˄0m (NaCl) = 126.4Ω-1 cm2 mol-1
˄0m (CH3 COONa) = 91Ω-1 cm2 mol-1
The molar conductivity, at infinite dilution, of acetic acid (in Ω-1 cm2 mol-1
) will be 		390.5
The molar conductivities of KCl, NaCl and KNO3 are 152, 128 and 111 S cm2mo1-1 respectively. What is the molar conductivity of NaNO3 ? 87 S cm2 mol-1
Which one of the following solutions will have highest conductivity? 0.1 M HCl
Which of the following electrolytic solutions has the least specific conductance? 0.002 N
Which of the following does not conduct electricity? Solid NaCl
For strong electrolytes the plot of molar conductance vs√C is linear
The units of equivalent conductance, are Ω-1 cm2 equiv-1

Environmental Chemistry MCQ Questions

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Environmental Chemistry Questions and Answers

Environmental Chemistry Quiz Question Answer
Which compound is mainly responsible for the depletion of ozone layer? CF2 Cl2
Green house effect is caused by CO2
Among the following compounds, which one is not responsible for the depletion of ozone layer? CH4
Which of the following is secondary pollutant? PAN
The gas that is not considered as a 'green house gas' is O2
Which of the following is not an air pollutant? N2
Which of the following is a measurement of water pollution ? BOD
The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was methyl isocyanate
Use of chlorofluorocarbons is not encouraged because they eat away the ozone in the atmosphere
What is DDT among the following? Non-biodegradable pollutant

Equilibrium MCQ Questions

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Equilibrium Questions and Answers

Equilibrium Quiz Question Answer
On adding ammonia to water,
Chemistry-Equilibrium-4121.png
Which of following base is weakest 2)
Chemistry-Equilibrium-4257.png
In the reaction H2 (g) + Cl2 (g) ⇌ 2HCl (g) KP = KC
Which of the following has highest pH ?
Chemistry-Equilibrium-3511.png
Which is the best choice for weak base-strong acid titration? Methyl red
The pH of 10- 4 M KOH solution will be 10
On doubling P and V with constant temperature, the equilibrium constant will remain constant
What is the pH of 10-2 M H2SO4 ? 1.6990
2HI (g) ⇌ H2 (g) + I2 (g) - QkJ
For the above reaction, equilibrium constant depends upon 		temperature

Chemistry-Equilibrium-3467.png
Chemistry-Equilibrium-3468.png

General Principles And Processes Of Isolation Of Elements MCQ Questions

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General Principles And Processes Of Isolation Of Elements Questions and Answers

General Principles And Processes Of Isolation Of Elements Quiz Question Answer
Sulphide ores are common for metals Ag, Cu and Pb
Which of the following is an oxide ore? Haematite
In metallurgical process, for which metal carbon is used for reduction of metal oxides? Fe
Argentite is an ore of Ag
Thermite process is used in the reduction of Cr2O3
Hydrometallurgy is based on reduction
Calamine is ZnCO3
Aluminium metal is refined by Hoope's process
Identify the ore not containing iron. Carnallite
Which one of the following is the chief ore of copper? Copper pyrites

Haloalkanes And Haloarenes MCQ Questions

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Haloalkanes And Haloarenes Questions and Answers

Haloalkanes And Haloarenes Quiz Question Answer
Which of the following will not respond to iodoform test? Propanol-1
Which of the following will not give positive iodoform test? CH3CH2COCH2CH3
Which of the following gives iodoform test? CH3 —CH2 (OH)
Tertiary butyl alcohol gives tertiary butyl chloride on treatment with conc. HCl/anhy. ZnCl2
When chloroform is treated with chlorine in the presence of sunlight, it yields pyrene
Which of the following does not answer iodoform test? n-butyl alcohol
Which one of the following is not formed when a mixture of methyl bromide and bromobenzene is heated with sodium metal in the presence of dry ether? Propane
Number of monochloro derivatives obtained when neo-pentane is chlorinated, is one
The catalyst used in the preparation of an alkyl chloride by the action of dry HCl on an alcohol is anhy. ZnCl2
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is 2,3-dimethyl butane

Hydrocarbons MCQ Questions

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Hydrocarbons Questions and Answers

Hydrocarbons Quiz Question Answer
What is the product formed when acetylene reacts with hypochlorous acid ? Cl3CHCHO
When sodium propionate is heated with soda lime, the product formed is ethane
Which of the following will yield trans product from butyne ? Na/Liq.NH3
Propene on reaction with hypochlorous acid to give
Chemistry-Hydrocarbons-4603.png
Propyne on passing through red hot iron tube gives
Chemistry-Hydrocarbons-4607.png
Which one of the following has the minimum boiling point? Iso-butene
The carbide which reacts with water to form ethyne is CaC2
Wurtz reaction involves the reduction of alkyl halide with Na in ether
Thermal decomposition of alkanes in the absence of air is called cracking
With respect to the conformers of ethane, which of the following statements is true ? Both bond angles and bond length remains same

Hydrogen MCQ Questions

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Hydrogen Questions and Answers

Hydrogen Quiz Question Answer
Hydrogen is evolved by the action of cold dil. HNO3 on Mn
The most abundant element in the universe is thought to be hydrogen
Water possesses a high dielectric constant, therefore it is universal solvent
Among CaH2 , NH3 NaH and B2 H6 , which are covalent hydride? NH3 and B2 H6
Which one of the following reactions does not form gaseous product ? PbS + H2O2 →
Water boils and freezes exactly at 100ºC and 0ºC respectively; find the reason for it from the following Boiling and freezing temperature of water were used to define temperature scales
The dielectric constant of H2O is 80. The electrostatic force of attraction between Na+ and Cl– will be reduced to 1/80 in water than in air
The volume strength of 1.5 N H2 O2 solution is 8.4 L
Commercial sample of H2O2 is labeled as 10 V. Its % strength is nearly 3
Calgon used as a water softener is
Chemistry-Hydrogen-5073.png

Nitrogen Containing Compounds MCQ Questions

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Nitrogen Containing Compounds Questions and Answers

Nitrogen Containing Compounds Quiz Question Answer
Reduction of nitrobenzene in the presence of Zn /NH4 Cl gives N-phenyl hydroxylamine
Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed contains. mixture of o and p-bromotoluenes
Nitrobenzene is reduced by Zn and alcoholic potash mixture to get C6H5 —NH—NH—C6H5
Nitration of nitrobenzene at 125°C with mixed acids gives meta-dinitrobenzene
Which of the following compounds is soluble in benzene but almost insoluble in water? C6H5NO2
Which compound is known as alkyl carbylamine? R ∙ NC
Alkyl cyanides undergo Stephen reduction to produce aldehyde
Benzamide can be converted into benzonitrile with P2O5
Ethyl isocyanide on hydrolysis in acidic medium generates ethylamine salt and methanoic acid
Aliphatic nitrites are prepared by the treatment of alkyl halides with sodium cyanide

Nuclear Chemistry MCQ Questions

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Nuclear Chemistry Questions and Answers

Nuclear Chemistry Quiz Question Answer
The half-life of Ra 226 is 1620 yr, the decay constant (k) is 0.0004278
A radioactive isotope has a half-life of 27 days. Starting with 4 g of the isotope, what will be mass remaining after 75 days ? 0.58 g
In a radioactive decay, an emitted electron comes from the nucleus of atom
If half-life period is 100 yr, average life is nearly 144 yr
What is the fuel of atomic pile ? Uranium
Which of the following has magic number of neutrons? 83Bi209
The cause of instability of nucleus is low proton, neutron ratio
If the mass defect of 5B11 is 0.081 u, its average binding energy (in MeV) is 6.85
In terms of energy 1 u is equal to 931.1 MeV
The energy released in an atom bomb explosion is mainly due to lesser mass of products than initial material

Organic Chemistry Some Basic Principles And Techniques MCQ Questions

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Organic Chemistry Some Basic Principles And Techniques Questions and Answers

Organic Chemistry Some Basic Principles And Techniques Quiz Question Answer
Which type of isomerism is shown by 2, 3-dichlorobutane ? Optical
Among the following compounds, the most acidic is o-hydroxybenzoic acid
Orbital interaction between the a-bonds of a substituent group and a neighbouring it-orbital is known as hyperconjugation
+I-effect is shown by -CH3
The IUPAC name of the following compound is
Chemistry-Organic Chemistry Some Basic Principles and Techniques-5828.png		 trans-2-chloro-3-iodo-2-pentene
The reaction intermediate produced by homolytic cleavage of a bond is called free radical
Which kind of fission is favoured by sunlight? Homolytic fission
The correct order for homolytic bond dissociation energies (AH in kcal/mol) for CH4 (A), C2 H6 (B) and CH3 Br (C), under identical experimental conditions, is A > B > C
Chlorobenzene is o, p -directing in electrophilic substitution reaction. The directing influence is explained by +M of Cl
The state of hybridization of C2, C3, C5 and C6 of the hydrocarbon,
Chemistry-Organic Chemistry Some Basic Principles and Techniques-5834.png		 sp, sp3, sp2 and sp3

Polymers MCQ Questions

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Polymers Questions and Answers

Polymers Quiz Question Answer
Which one is classified as a condensation polymer? Dacron
A copolymer of ethene and vinyl chloride contains alternate monomers of each type. What is the mass percentage of vinyl chloride in this copolymer? 69%
Which of the following has an ester linkage? Dacron
Terylene is not a chain growth polymer
Cellulose, protein and starch are classified as natural polymers
The process of formation of polymers from respective monomers is called polymerization
Polycondensation products of dicarboxylic acids and diols are polyesters
PDI for natural polymers is generally close to 1
Which one of the following is not a condensation polymer? Buna-S
Which type of polymer is bakelite? Condensation polymer

Redox Reactions MCQ Questions

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Redox Reactions Questions and Answers

Redox Reactions Quiz Question Answer
HNO3 acts as both 1 and 2
Which of the following involves a redox reaction? Production of nitrogen oxides from nitrogen and oxygen in the atmosphere by lightning
In Br3O8 compound, oxidation number of bromine is 16/3
Oxidation state of oxygen in H2O2 is -1

Chemistry-Redox Reactions-6832.png		 16
Which one of the following oxidation states is not possible in metal carbonyls ? +2
What is the oxidation number of Pt in K [Pt NH3 Cl5] ? +4
Among the following, identify the species with an atom in +6 oxidation state
Chemistry-Redox Reactions-6837.png
The oxidation number of iron in Fe3O4 is 8/3

Chemistry-Redox Reactions-6660.png		 + 5, + 6 and + 6

Sblock Elements MCQ Questions

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Sblock Elements Questions and Answers

Sblock Elements Quiz Question Answer
Bleaching powder is obtained by treating chlorine with Ca(OH)2
Solvay process is used for the manufacture of Na2 CO3
On strong heating sodium bicarbonate changes into sodium carbonate
The function of Sodium pump is a biological process operating in each and every cell of all animals. Which of the following biologically important ions is also a consituent of this pump : K+
Most powerful reducing agent is Li
The activity of alkaline earth metals as reducing agent increases from Be to Ba
In curing cement plasters water is sprinkled from time to time. This helps in developing interlocking needle—like crystals of hydrated silicates
The wire of flash bulb is made of ... Mg
Lithium shows diagonal relationship with magnesium
Sodium carbonate is manufactured by Solvay process

Solutions MCQ Questions

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Solutions Questions and Answers

Solutions Quiz Question Answer
The osmotic pressure is expressed in the units of atm
The freezing point of 1% solution of lead nitrate in water will be below 0° C
Which among the following is a non-colligative property refractive index
The osmotic pressure of a solution is given by the relation π/C = ST
The freezing point of 1 molal NaCl solution assuming NaCl to be 100% dissociated in water is – 3.72oC
Now a days, divers uses the cylinder having gaseous mixture contains - 11.7 % He, 56.2 % N2 and 32.1 % O2
Due to which reason, O2 gas liberates from the blood of tissues of animal bodies partial pressure of oxygen gas is less in tissues
Which of the following is not a substitutional solid solution ? wc
Which of the following is a substitutional solid solution ? wc

Chemistry-Solutions-7159.png		 increases

Some Basic Concepts Of Chemistry MCQ Questions

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Some Basic Concepts Of Chemistry Questions and Answers

Some Basic Concepts Of Chemistry Quiz Question Answer
The number of oxygen atoms in 4.4 g of CO2 is 1.2 × 1023
Gram molecular volume of oxygen at STP is 22400 cm3
Which has maximum number of atoms? 24 g of C
Which of the following has the smallest number of molecules ? 0.1 mole of CO2 gas
The maximum number of molecules are present in 15 L of H2 gas at STP
4.6 x 1022 atoms of an element weigh 13.8 g. The atomic weight of that element is 180
Law of constant composition is same as the law of definite proportion
A molar solution is one that contains one mole of a solute in One litre of the solution
1 mol of CH4 contains 4 g atoms of hydrogen
The density of gas A is three times that of gas B. If the molecular weight of A is M, the molecular weight of B is M/3

States Of Matter MCQ Questions

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States Of Matter Questions and Answers

States Of Matter Quiz Question Answer
The compressibility factor for a real gas at high pressure is
Chemistry-States of Matter-7523.png
The average velocity (in cm/s) of hydrogen molecule at 27°C will be 17.8 × 104
Which of the following will increase with the increase in temperature? Vapour pressure
Dipole-induced dipole interactions are present in which of the following pairs : HCl and He atoms
The compressibility factor of an ideal gas is 1
Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape ? 1/8
Which of the following is correct at freezing point? Solid and liquid are in equilibrium
The term that corrects for the attractive forces present in a real gas in the van der Waal's equation is n2 a/V2
A gas deviates from ideal behaviour at a high pressure because its molecules attract one another
Under which of the following conditions, van der Waals' gas approaches ideal behaviour? Extremely low pressure

Structure Of Atom MCQ Questions

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Structure Of Atom Questions and Answers

Structure Of Atom Quiz Question Answer
[Ar] 3d 10, 4s1 electronic configuration belongs to Cu
The most probable radius (in pm) for finding the electron in He+ is 26·5
The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at
Chemistry-Structure of Atom-8039.png
The de-Broglie wavelength of a particle with mass 1g and velocity 100 m/s is
Chemistry-Structure of Atom-8041.png
Two electrons occupying the same orbital are distinguished by Spin quantum number
For a f-orbital the values of m are -3,- 2, -1, 0,+ 1,+ 2,+ 3
What is the maximum number of orbitals that can be identified with the following quantum numbers?
Chemistry-Structure of Atom-7754.png		 1
Impossible orbital among the following is 3f
What is the maximum numbers of electrons that can be associated with the following set of quantum numbers?

n = 3, l = 1 and m = –1

 2
The orbital angular momentum of a p-electron is given as :
Chemistry-Structure of Atom-7756.png

Surface Chemistry MCQ Questions

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Surface Chemistry Questions and Answers

Surface Chemistry Quiz Question Answer
Which of the following statements is incorrect regarding physisorption? Enthalpy of adsorption ( ∆Hadsorption ) is slow and positive
Which of the following is a wrong statement for physisorption? Reaction requires an energy of activation
In physical adsorption, the adsorbent and adsorbate are held together by the van der Waals' forces
During the adsorption of krypton on activated charcoal at low temperature ∆H < 0 and ∆S < 0
Rate of physical adsorption increases with decrease in temperature
Freundlich adsorption isotherm is
Chemistry-Surface Chemistry-8288.png
Activated charcoal is used to remove colouring matter from pure substances. It works by adsorption
The extent of adsorption of a gas on a solid depends on All of these
In the case of autocatalysis product catalysis
Which of the following reaction requires catalyst? 2SO2 + O2 → 2SO3

The D And F Block Elements MCQ Questions

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The D And F Block Elements Questions and Answers

The D And F Block Elements Quiz Question Answer
In chromite ore, the oxidation number of iron and chromium are respectively +2, +3
The spin only magnetic moment of Fe2+ ion (in BM) is approximately 5
Anhydrous ferric chloride is prepared by passing dry Cl2 gas over heated iron scrap
Copper exhibits only + 2 oxidation state in its stable compounds. Why ? + 2 state compounds of copper are formed by exothermic reactions
German silver alloy contains zinc, nickel and copper
Lanthanide contraction is caused due to the imperfect shielding on outer electrons by 4f -electrons from the nuclear charge
The electronic configuration of Cu is [ Ne ] 3s2, 3p6, 3d 10, 4s1
Hair dyes contain silver nitrate
Brass is an alloy of Cu with Zn
Least paramagnetic property is shown by Cu

Thermodynamics MCQ Questions

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Thermodynamics Questions and Answers

Thermodynamics Quiz Question Answer
A Beckmann thermometer is used to measure Low temperature
The calorific value of fat is ………. more than thant of carbohydrates and protein
A piece of ice kept at room temperature melts of its own. This reaction is governed by which law ? Second law of thermodynamics
For a chemical reaction, ∆G will always be negative if ∆H is negative and T∆S is positive
Which of the following processes is accompanied by an increase in entropy ? Decomposition of N2O5 to N2O to O2
Which of the following does not exhibit zero entropy at absolute zero Glass
The favourable conditions for a spontaneous reaction are T∆S > ∆H, ∆H = +ve, ∆S = +ve

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The heat of combustion of carbon to CO2 is –393.5 kJ/mol. The heat released upon formation of 35.2 g of CO2 from carbon and oxygen gas is +315kJ

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The Solid State MCQ Questions

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The Solid State Questions and Answers

The Solid State Quiz Question Answer
The elements commonly used for making transistors are Si and Ge
A metal crystallizes with a face-centered cubic lattice. The edge length of the unit cell is 408 pm. The diameter of the metal atom is : 288 pm
Most crystals show good cleavage because their atoms, ions or molecules are arranged in planes.
Glass is a supercooled liquid
Iodine is a molecular solid
The number of atoms contained in a fcc unit cell of a monatomic substance is 4
The ability of a substances to assume two or more crystalline structures is called Polymorphism
For a crystal system a = b = c and α = β = γ ≠ 90o rhombohedral
A solid compound XY has NaCl structure. If the radius of the cation is 100 pm, the radius of the anion (Y–) will be : 241.5 pm
A body centric cubic lattice is made up of two different types of atoms A and B. Atom A occupies the body centre and B occupying the corner positions. One of the corners is left unoccupied per unit cell. Empirical formula of such a solid is A8B7