CBSE Multiple Choice Type Questions for 12th Class Medical Chemistry PDF formatted study resources are available for free download. These Grade 12 Medical Chemistry CBSE MCQ Mock Test helps you learn & practice the concepts in a fun learning way.

## Class 12 Medical Chemistry MCQs Multiple Choice Questions with Answers

Here are the chapterwise CBSE MCQ Quiz Test Questions for Class 12th Medical Chemistry in pdf format that helps you access & download so that you can practice online/offline easily.

### Alcohols, Phenols And Ethers Questions and Answers

Alcohols, Phenols And Ethers Quiz Question Answer
The IUPAC name of
Identify:
Which of the following is the best set of reagents to perform the above conversion?
$$ThO_{2},\Delta$$
Major product of the following reaction is
The order of melting point of ortho, para, meta-nitrophenol is $$p\gt m\gt o$$
The IUPAC name of
Propene is subjected to acidic hydration and hydroboration oxidation in two different experiments. The products obtained respectively are isopropyl alcohol, n-propyl alcohol
What is the major product A?
What is the reagent used and appropriate temperature required to prepare ethene from ethyl alcohol?
Concentrated $$H _ { 2 } S O _ { 4 } , 170 ^ { \circ } C$$
Dehydration of alcohol to alkene involves all the steps, except:- loss of proton from carbonium ion from the $$\beta$$-position

### Aldehydes, Ketones And Carboxylic Acids Questions and Answers

Aldehydes, Ketones And Carboxylic Acids Quiz Question Answer
Which of the following carboxylic acid is most acidic in character - Benzoic acid

The IUPAC name of the compound is :
2,6-dimethylhepta-2,5-dienoic acid
Which of the following forms a stable hydrate  $$HCHO$$
$$CH_{3}COOH \xrightarrow []{LiAlH_{4}}X \xrightarrow []{Cu/300^{o}C} Y \xrightarrow []{dil.NaOH}Z$$ in the above reaction $$Z$$ is Aldol
1-butyne reacts with cold alkaline $$KMn{O_4}$$ to produce $$C{H_3}C{H_2}COOH + C{O_2}$$
Vinegar is present in acetic acid. Curd contains ____ acid. lactic acid
The number of carbon atoms in the principle chain of the given compound are :
$$5$$
Citric acid is present in lemon. Apple contains: malic acid
To get DDT , chlorobenzene has to react with which of the following compounds in the presence of concentrated sulphuric acid Trichloroacetaldehyde
The correct structure representation of carboxylate ion is

#### Biomolecules Class 12 Medical Chemistry MCQ Quiz

Glucose is carbohydrate.
True
Enzymes are different from inorganic catalysts in Being proteinaceous in nature.
An enzyme can be synthesised by chemically bonding together molecules of  Amino acids
K$$_m$$ is related to ES complex
Incorrect statement about given carbohydrate is
Above compound is a reducing sugar
Guanine is an example of: a nitrogenous base
Raffinose on hydrolysis forms_________
All of these
Fructose is present in sperm. True
State whether the following statements are True or False:
Raffinose is a trisaccharide. On hydrolysis, it gives three molecules of glucose.
False
State whether the following statements are True or False:
Vitamin C is synthesised in skin cells in sunlight.
False

### Chemical Kinetics Questions and Answers

For a first order reaction, $${\text{A}} \to {\text{P,}}{{\text{t}}_{{\text{1/2}}}}\left( {{\text{half -}}\,{\text{life}}} \right)$$  is $$10$$ days. The time required for $$\dfrac{1}{4}^{th}$$ conversion of $$A$$(in days) is : $$\left( {{\text{ln}}\,{\text{2 = 0}}{\text{.693, ln}}\,{\text{3 = 1}}{\text{.1}}} \right)$$ $$4.1$$
for a zero order reaction- $$t_{\frac{1}{2}}\propto a$$
Rate of the reaction $$A\longrightarrow P$$ is $$0.5{ M\ s }^{ -1 }$$ at time $$t=15\ s$$, then rate at time $$t=5\ s$$ will be:$$\left( { in\quad M-s }^{ -1 } \right)$$ $$\left( 0.5 \right) ^{ 2 }$$
A graph plotted between log $$t_{50\%}$$ vs log of concentration is a straight line. What conclusion can you draw from the given graph?
$$n=1,\ { t }_{ 1/2 }= 0.693/k$$
Which one of the following formula represents a first-order reaction?  $$K=\dfrac { 2.303 }{ t } { log }_{ 10 }\dfrac { a }{ \left( a-x \right) }$$
For the reaction $$4NH_{ 3 }+5O_{ 2 } \rightarrow 4NO+6H_{ 2 }O$$, the rate of reaction with respect to $${ NH }_{ 3 }$$ is $$2\times 10^{ -3 }Ms^{ -1 }$$. Then the rate of the reaction with respect to oxygen is _________ $$Ms^{ -1 }$$. $$2.5\times 10^{ -3 }$$
For the first order reaction
$${ 2N }_{ 2 }{ O }_{ 5 }\left( g \right) \longrightarrow { 4NO }_{ 2 }\left( g \right) +{ O }_{ 2 }\left( g \right)$$
the reaction proceeds to 99.6% completion in eight half-life duration.
For a gaseous equilibrium : $$2A(g)\rightleftharpoons 2B(g)+C(g)$$  $$K_{p}$$  has a value 1.8 at 700 K.  The value of $$K_{c}$$  for the equilibrium : $$2B(g+C(g)\rightleftharpoons 2A(g)$$  at that temperature is about  _________. 0.031
In the following first order competing reaction:
A+Reagent $$\longrightarrow$$ Product B+Reagent $$\longrightarrow$$ Product
The ratio of $${ K }_{ 1 }/{ K }_{ 2 }$$ if only 50% of B will have been reacted when 94% of A has been reacted is:
4.06
Which among the following reaction is an example of a zero order reaction? $$2NH_{3(g)}\overset{Pt}{\rightarrow}N_{2(g)}+3H_{2(g)}$$

### Chemistry In Everyday Life Questions and Answers

Chemistry In Everyday Life Quiz Question Answer
Which of the following is used as an antipyretic medicine? Paracetamol
Drugs that bind to the receptor sites and inhibit its natural function, are called:
antagonist
The chemical substances which relieve the pain either completely or partially are called laxatives.
False
On treating roll sulphur with an aqueous solution of calcium hydroxide : milk of sulphur is prepared
Antacids are _____ in nature. basic
Which one of the following is employed as a tranquilizer? Equanil
Which of the following is not a classification of drugs? None
Which of the following is an antacid? All of the above
Which of the following is an antihistamine? Brompheniramine
Tincture of iodine is -  solution of $${ I }_{ 2 }$$ in aqueous KI.

### Coordination Compounds Questions and Answers

Which compound to use for treatment of tumor? $$Cis\left[ Pt{ Cl }_{ 2 }{ \left( { NH }_{ 3 } \right) }_{ 2 } \right]$$
Which of the following represent E isomer?
A complex of iron and cynide is $$100 \%$$ ionised at $$1 m$$ if its elevation in boiling point is $$2.08^{o}$$ ($${K_b}=0.52^{o}mol/kg$$) then the complex is: $${K_3}[{Fe(C{N)_6}}]$$
Select the correct statement(s) about "Ziese's salt'', $$K[PtCl_{3}(\eta^ {2}-C_{2}H_{4})]$$. All of these
The total number of possible isomers for the square planar $$[Pt(Cl)(NO_2)(NO_3)(SCN)]^{2-}$$ is : $$12$$
In the following reaction the major complex product is $$[PtCl_{4}]^{2-}+2NH_{3}\rightarrow\ [PtCl_{2}(NH_{3})_{2}]+2Cl^{-}$$ cis
Number of ions present in $$K_{4}[Fe(CN)_{6}]$$ $$5$$
What is the pairing energy of the following completes?
$$A=(Fe(NH_{3})_{6})^{3+}$$
$$B=[Co(ox)_{3}]^{3-}$$
$$C=CoF_{6}^{3-}$$
Pairing energy of $$A\neq B\neq C$$
Which of the following complexes is(are) paramagnetic ?

$$[Cr(NH_{3})_{6}]^{3+}$$

$$[Co(NH_3)_4Cl_2]$$ possesses :

Octahedral geometry

#### Electrochemistry Class 12 Medical Chemistry MCQ Quiz

in all concentrations
Which of the following statements is incorrect?
Conductance of an electrolytic solution decreases with dilution.
$$1$$ faraday $$= \ ?$$ $$96500\ C$$
Which of the following methods is employed to prevent rusting? both (b) and (c)
In electrolysis positive ions move towards the negative electrode and negative ions towards the positive electrode.
The U shaped vessel used in Nelson cell is lined inside with asbestos which:
acts as an insulator.
In which cell the free energy of a chemical reaction is directly converted into electricity  Concentration cell
Which of the following is correct? $${ E }_{ cell }$$ is an intensive property while $$\triangle { _{ r }{ G } }$$ of cell reaction is an extensive property
A $$250.0\ ml$$ sample of a $$0.20\ M\ Cr^{3+}$$ is electrolysed with a current of $$96.5\ A$$. If the remaining $$[Cr^{3+}]$$ is $$0.1\ M$$ the duration of process is ? $$75\ sec$$

The compounds which decompose on passage of an electric current through them are known as :

electrolytes

### General Principles And Processes Of Isolation Of Elements Questions and Answers

General Principles And Processes Of Isolation Of Elements Quiz Question Answer
During electrolytic refining of Alumina, the molten electrolyte used contains _______ .
All of the above
During electrolytic reduction of alumina, ___________.
Al is formed at cathode and oxygen is formed at anode
The composition of copper matte is: $$Cu_2S+FeS$$
During calcination:
carbonate ores are changed into oxides
Metal oxide can be reduced by __________. $$C$$
Copper matte contains ___________ . $$Cu_2S, FeS$$
Which of the following two substances react to produce blister copper? $$Cu_{2}S_{(s)}$$ and $$Cu_{2}O_{(s)}$$
In the metallurgy of zinc, the zinc dust obtained from roasting and reduction of zinc sulphide contains some ZnO. How is this removed? Smelting
Gravity separation method is used to concentrate which type of ores? Oxide ores
During the extraction of copper from pyrite slag is mainly made up of $$FeSiO_{3}$$

### Haloalkanes And Haloarenes Questions and Answers

Haloalkanes And Haloarenes Quiz Question Answer
Compound $$(B)$$ is:
Which of the following show optical isomerism?
Which of the following reactions will yield $$2, 2-dibromo-propane$$? $$CH_{3}C \equiv CH + 2HBr$$
What is the minimum quantity (in grams) of methyl bromide required for preparing one mole of ethane by wurtz reaction? 188
Which of the following alkyl halides will undergo $${S}_{N}{1}$$ reaction most readily? $${ \left( C{ H }_{ 3 } \right) }_{ 3 }C-I$$
The compounds are optically inactive because
Compound I has the plane of symmetry, while compound II has the centre of symmmtry.
Compound $$(F)$$ is: $$1,3,5-$$ Trimethylbenzene
The reaction of an aromatic halogen compound with an alkyl halides in presence of sodium and ether is called Wurtz-fittig reaction
Which of the following statements is correct about halogens? they are all diatomic and form univalent ions
The major product of the following reaction is :

### Organic Compounds Containing Nitrogen Questions and Answers

Organic Compounds Containing Nitrogen Quiz Question Answer
Which of the following is the most stable diazonium salt? $$C_6H_5N_2^+X^-$$
Which of the following amines yields foul smelling product with haloform and alcoholic $$KOH$$? Ethylamine
Which of the following is a secondary amine ? Diphenyl amine
Which of the following will not undergo diazotisation ?
Benzyl amine
Which of the N atoms is least basic in the given compound ?
a
Which of the following is the least basic?
Which is most basic?
Which of the following compound is expected to be most basic  Ethylamine
Which of the following is obtained by reducing methyl cyanide with $$Na+ C_2H_5OH$$? Ethyl amine
What is the_decreasing order of basicity of pri., sec., tert., ethyl amines and $$NH_3?$$ $$(C_2H_5)_2NH>C_2H_5NH_2>NH_3>(C_2H_5)_3N$$

#### Polymers Class 12 Medical Chemistry MCQ Quiz

Nylon is an example of: polyamide
Which of the following fibres are made of polyamides? Nylon
Which of the following has extreme resistance to abrasion? Both A and B
Chloroprene is the monomer of: Neoprene
Bakelite is ___. brittle plastic
Which one of the following is a linear polymer? Amylose
The plastic product which can be remoulded is polyethene
Fishing nets are made of nylon
Nylon-$$6,6$$ is a: polyamide
The natural rubber is the polymer of: isoprene

#### Solutions Class 12 Medical Chemistry MCQ Quiz

On a certain day, the vapour pressure is 24 mm of Hg for water vapour in air at 300 K. The saturated vapour pressure is 26.463 mm. How many moles of water vapour per liter of air would be required to saturate the air at this temperature? 0.00013
One mole of non-volatile solute is dissolved in two moles of water. The vapour pressure of the solution relative to that of water is: $$\cfrac{2}{3}$$
Volume occupied by one molecule of water (density = 1 $$gcm^{-3}$$) is: $$3.0 \times 10^{-23}\ cm^3$$
The vapour pressure of a pure liquid solvent (X) is decreased to 0.60 atm from 0.80 atm on the addition of a non-volatile substance (Y). The mole fraction of Y in the solution is: 0.25
One mole of calcium phosphide on reacting with excess of water gives: two moles of phosphine
Among the following, the substance with greater lowering of vapour pressure is Equal in all cases
Relative lowering in vapour pressure of a solution containing 1 mole $$K_{2}SO_{4}$$  in 54 g $$H_{2}O$$  is: ( $$K_{2}SO_{4}$$ is 100 % ionised )  $$\dfrac{3}{4}$$
The mass of $$CaO$$ obtained by heating 200 kg of limestone $$( CaCO_3)$$ which is 95% pure is:  106.4 kg
There are two oxides of sulphur. They contain 50% and 60% of oxygen respectively by weight. The weights of sulphur which combine with 1 gm of oxygen are in the ratio of:  3 : 2
$$18 g$$ glucosse $$\left( C _ { 6 } H _ { 12 } O _ { 6 } \right)$$ is added to 178.2 g water. The vapor pressure of water (in torr) for aqueous solution is
$$752.4$$

### Surface Chemistry Questions and Answers

Adsorption played an important role in: heterogeneous catalysis
The catalyst used in the reduction of perisulphate to sulphate with iodide ion is  Both 1 and 2
In physical adsorption the gas molecules are held on solid surface by  Vander waal's forces
Which is wrong about a positive catalyst?
It makes the reaction more exothermic or endothermic
Identify an emulsion from among the following.
Milk
Which of the following cannot be used to prepare an emulsion of benzene in water?
$$(CH_3)_4 \overset{+}{N}Br^-$$
Which one of the following is an incorrect statement for physisorption? It requires activation energy
If some gelatin is mixed in collodial solution of gold, then it does  Protection of gold sol
Colloidal solution of arsenious sulphide can be prepared by Double decompositon

### The D-And F-Block Elements Questions and Answers

The D-And F-Block Elements Quiz Question Answer
Titanium oxide is added in interior paints for walls of rooms, halls and galleries to give : a whiter 'white'
The correct statement for d-block element is: It has tendency of formation of colored ions
Lanthanides and actinides resemble in: electronic configuration
The atomic numbers of elements of second inner transition elements lie in the range of :
90 to 103
An atom of element has $$2K, 8L$$ and $$3M$$ electrons. Then the element belongs to : IIIA group
Which element among the Lanthanides has the smallest atomic radius ?
Lutetium
The transition metal ions responsible for color in Ruby and Emerald are, respectively : $${Cr}^{3+}$$ and $${Cr}^{3+}$$
Assertion is true, but reason is false.
The correct order of spin-only magnetic moments among the following is:

(Atomic number: $$Mn=25, Co=27, Ni=28, Zn=30)$$.
$$[MnCl_4]^{2-} > [CoCl_4]^{2-} > [NiCl_4]^{2-} > [ZnCl_4]^{2-}$$
The correct order of the spin-only magnetic moment of metal ions in the following low spin complexes, $$[V(CN)_6]^{4-}, [Fe(CN)_6]^{4-}$$, $$[Ru(NH_3)_6]^{3+},$$ and $$[Cr(NH)_3)_6]^{2+}$$, is: $$V^{2+} > Cr^{2+} > Ru^{3+} > Fe^{2+}$$

### The P-Block Elements Questions and Answers

The P-Block Elements Quiz Question Answer
What is the atomic number (Z) of the noble gas that reacts with fluorine?
54
The word Argon represents the term_______
Lazy
Halogens means:
sea salt products
The element that oxidizes water to $$\mathrm{O}_{2}$$ with a large evolution of heat is:
$$\mathrm{F}_{2}$$
Zero group elements are known as____________. inert gases
Ionic radius (in $$\mathrm{A}^{\mathrm{o}}$$) of $$\mathrm{A}\mathrm{s}^{3+},\mathrm{S}\mathrm{b}^{3+}$$ and $$\mathrm{B}\mathrm{i}^{3+}$$ follow the order :
$$\mathrm{B}\mathrm{i}^{3+}>\mathrm{S}\mathrm{b}^{3+}>\mathrm{A}\mathrm{s}^{3+}$$
Which is the most thermodynamically stable allotropic form of phosphorus? Black
Among these ores the highest phosphorus content is in : phosphorite
Which one of these group off elements is also called the halogen family? Group 17
Which of the following does not contain fluorine?
Chile saltpeter

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