CBSE Multiple Choice Type Questions for 11th Class Medical Chemistry PDF formatted study resources are available for free download. These Grade 11 Medical Chemistry CBSE MCQ Mock Test helps you learn & practice the concepts in a fun learning way.

## Class 11 Medical Chemistry MCQs Multiple Choice Questions with Answers

Here are the chapterwise CBSE MCQ Quiz Test Questions for Class 11th Medical Chemistry in pdf format that helps you access & download so that you can practice online/offline easily.

### Chemical Bonding And Molecular Structure Questions and Answers

Chemical Bonding And Molecular Structure Quiz Question Answer
The strength of sigma bonds formed by axial overlap of $$s-$$ or $$p-$$ orbitals of $$2nd$$ shell of participating atom decreases as: $$p-p>s-p>s-s$$
Which one of the of the following molecules is expected to have zero dipole moment? $$CO_2$$
The number of P-O-P and P-O-H bonds present respectively in pyrophosphoric acid molecule are_____ 1,4
Which formulae does not correctly represents the bonding capacity of the atom involved?
The number of electron pairs in $$Xe{F}_{4}$$ at the corners of the square are _______. 4
What is the electronic configuration of elements of $$III$$ rd group $$1{ s }^{ 2 },2{ s }^{ 2 }2{ p }^{ 6 },3{ s }^{ 2 }3{ p }^{ 1 }$$
For which of the following molecule significant $$\mu \neq 0?$$
$$(c)\: and\:(d)$$
Identify the pair in which the geometry of the species is T-shape and square pyramidal, respectively. $$XeOF_2$$ and $$XeOF_4$$
Boron cannot form which one of the following anions?  $$\mathrm{B}\mathrm{F}_{6}^{3-}$$
The number and type of bonds in $$C_{2}^{2-}$$ ion in $$CaC_2$$ are : one $$\sigma$$ bond and two $$\pi$$-bonds

### Classification Of Elements And Periodicity In Properties Questions and Answers

Classification Of Elements And Periodicity In Properties Quiz Question Answer
The element with configuration $$1s^2 2s^2 2p^6 3s^2$$ would be  A metal
The basic character of $$MgO, SrO, K_2O$$ and $$NiO$$ increases in the order:
$$NiO < MgO < SrO < K_2O$$
IUPAC symbol of atomic number $$119$$. $$Uue$$
The electronic configuration with the highest ionization enthalpy is: $$[Ne]3s^2\,3p^3$$
Aqueous solution of which salt will not contain ions with the electronic configuration $$1{s}^{2} 2{s}^{2} 2{p}^{6} 3{s}^{2} 3{p}^{6}$$? $$NaF$$
The atomic numbers of elements $$A, B, C$$ and $$D$$ are $$Z-1, Z, Z+1$$ and $$Z+2$$, respectively. If $$'B'$$ is a noble gas, choose the correct answers from the following statements
(1) $$'A'$$ has higher electron affinity
(2) $$'C'$$ exists in $$+2$$ oxidation state
(3) $$'D'$$ is an alkaline earth metal
(1) and (3)
The halogen with highest ionisation potential is :
F
Identify the element with atomic number 10.
Neon
The metal having highest ionisation potential is :
lithium
Diagonal relationship is shown by :
elements of third period

### Environmental Chemistry Questions and Answers

The layer of atmosphere between $$10\ km$$ to $$50\ km$$ above the sea level is called as: stratosphere
The regions of the atmosphere, where clouds form and where we live respectively, are: Troposphere and Troposphere
Biochemical Oxygen Demand $$(BOD)$$ is the amount of oxygen required (in ppm) :
by bacteria to break-down organic waste in a certain volume of a water sample.
Biochemical Oxygen Demand(BOD) value can be a measure of water pollution caused by the organic matter. Which of the following statements is correct? Polluted water has BOD value higher than $$10$$ ppm
Which is wrong with respect to our responsibility as a human being to protect our environment? Using plastic bags
Depletion of which gas in the atmosphere can lead to an increase incidence of skin cancers? Ozone
World ozone day is celebrated on __________ $$16^{th}$$ September
Ozone in stratosphere extends 20-25km
The stratospheric ozone depletion leads to? All of the above
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

#### Equilibrium Class 11 Medical Chemistry MCQ Quiz

Which of the following is strongest conjugate base  $$\,\,{{\text{P}}^{\text{ - }}}\,\,$$
Which of the following combination will act as a buffer? $$CH_{3}COOH + NaOH$$ (Molar ratio 2:1)
Number of buffers can be made by reaction of $$H_3PO_4$$ and NaOH  is 3
$$HCOO^- + H_2O \rightleftharpoons HCOOH + OH^-$$ is related:- $$h=\sqrt{\frac{K_h}{C}}$$
Percentage dissociation of a $$0.024 M$$ solution of a weak acid $$HA$$ is:
($${K_a}=2 \times 10^{-3}$$)
$$\approx 29 \%$$
Which of the following is the correct order of hydrated radii? $$Cs^{+}$$ < $$Rb^{+}$$<$$K^{+}$$<$$Na^{+}$$ < $$Li^{+}$$
For an acidic indicator has $$K_{a}$$ value of $$10^{-5}$$. The $$\%$$ basic form when $$pH$$ equal to $$5.3$$ is :
[Given $$\log 2=0.3$$]
$$66.66$$
When a strong base $$NaOH$$ is added to the acidic buffer containing $$CH_3COOH+CH_3COONa$$ then which of the following reaction occurs? $$CH_3COOH+NaOH \rightarrow CH_3COONa+H_2O$$
Calculate the ratio of solubility of $$AgCl$$ in 0.1 M $$AgNO_3$$ and in pure water.
Given : $$K_{sp} (AgCl) = 1.8 \times 10^{-10}$$
$$1.34 \times 10^{-4} M$$
What is the $$pH$$ of a solution of $$0.28\ M$$ acid and $$0.84\ M$$ of its conjugate base if the ionztion constant of acid is $$4\times 10^{-4}$$? $$3.88$$

#### Hydrocarbons Class 11 Medical Chemistry MCQ Quiz

Acetylene reacts with excess of hypochiorous acid to produce
Dichloroacetaldehyde.
In which case butane is formed ? $$2C_2H_5 -CI+Na$$
$$CH_3CH=CH-CH_2-CO_2H\xrightarrow[\Delta]{}(X)$$ (major); Product (X) is : $$CH_3CH=CH-CH_3$$
$$IUPAC$$ name of the following compound is:
7- ethyl- 3,3, 4- trimethyl decane
Which of the following alkane gives only two mono chloro-derivatives?  propane
Alkanes can be obtained by the hydrolysis of  $$\mathrm{Al}_{4} \mathrm{C}_{3}$$
Methane is obtained from among the following: Both A and B
When the given compound undergoes Hoffmann methylation, the major product of the reaction:
Which of the following is not a pair of isomers:
Propene and Cyclopropene

#### Hydrogen Class 11 Medical Chemistry MCQ Quiz

The reaction of water with ammonia is given the following equation, $$H_2O+NH_3\rightleftharpoons NH^+_4+OH^-$$. In this reaction water behaves as : acid
Assertion: $$H_{2}O$$ is the only hydride of the chalcogens which is liquid.
Reasons:In ice, each $$O$$ atom is surrounded by $$4H$$ atoms.
Both A and R are correct but R is not the correct explanation of A
The photolysis of water gives the substance $$OH^- + H^+$$
Hydrogen can be put in halogen group because It forms hydrides like chlorides
In the reaction $$2H_2O \rightleftarrows H_3O^+ +OH^-$$, water is:  Both a weak acid and a weak base
Only one element of ________ forms hydride.  group 6
Sodium on reaction with cold water produces a residue. The nature of residue is: colourless, soapy and slightly warm
Which of the following combination will produce $$H_{2}$$ gas? $$Zn$$ metal and $$NaOH(aq)$$
Assertion: The $$O-O$$ bond length in $$H_2O_2$$ is shorter than that of $$O_2F_2$$.
Reason: $$H_2O_2$$ is an ionic compound.
If both the assertion and reason are false
Which of the following process is not used in the concentration of $$H_{2}O_{2}$$?
Sublimation

### Organic Chemistry Some Basic Principles And Techniques Questions and Answers

Organic Chemistry Some Basic Principles And Techniques Quiz Question Answer
What is the prefix if the number of carbon atoms is $$3$$? Prop-
Number of $$\pi$$-bods in the following compound  $$\dfrac{CH_3C \equiv CN}{3}$$ none
Correctly match is :  $$\sigma_{P_x}$$ -- $$\psi$$ (gerade)
Prefix used for $$-COOH$$ functional group is : Carboxy
Above Gauche form is stable when Z is:
$$IUPAC$$ name of $$[VO(O_{2})(acac)_{2}]$$ is bis(acetylacetonato)oxoperoxonanadium(VI)
Urea was first organic compounds to be synthesised by: wohlar
The functional groups which is not present in the given compound is:
Amide
Which functional group is present in a molecule of $${CH}_{3}O{CH}_{2}{CH}_{3}$$? Ether
Select the option having incorrect named compound(s) :
(I) 3, 3-dimethyl-1-hydroxycyclohexane    (II) 4-ethoxy-2-methoxypentan-3-one
(III) 2-ethyl-1, 1-dimethylcyclopentane  (IV) 4-amino-2-hydroxy-4-oxobutanal
II and IV

### Redox Reactions Questions and Answers

The oxidation number of sulphur is -4 in $${\text{N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{3}}}$$
What are the oxidation numbers of '$$N$$' in $${ NH }_{ 4 }N{ O }_{ 3 }$$? -3, +5
Is the compounds is according to decreasing order of the oxidation state of nitrogen?
$$HNO_3$$>$$NO$$>$$N_2$$> $$NH_4Cl$$
True
In the reaction : $$xBrO_{3}^{-}+yCr^{3+}+zH_{2}O\rightarrow Br_{2}+CrO_{4}^{2-}+H^{+}$$
The coefficient $$x,\ y$$ and $$z$$ are:
$$6,10,22$$
$$CrO^{2-}_4 \overset{pH=x}{\rightarrow}Cr_2O^{2-}_7 \overset{pH=y}{\rightarrow}CrO^{2-}_4$$.
x and y can be
3 and 8
Oxygen exhibit $$-1$$ oxidation state in: $$H_{2}O_{2}$$
Which is not redox change ? $$CaCO_{3} \rightarrow CaO+CO_{2}$$
(i) $$Br_2+2NaOH[cold] \rightarrow NaBr+(X)+H_2O$$
(ii) $$2Br_2+6NaOH[hot]\rightarrow NaBr+(Y)+H_2O$$

What is the oxidation number of $$Br$$ in $$(X)$$ and $$(Y)$$ respectively?
$$+1,+5$$
Identify the element that can have only two oxidation states. Fluorine
The highest oxidation state of Mn is shown by $${\rm{KMn}}{{\rm{O}}_4}$$

### Some Basic Concepts Of Chemistry Questions and Answers

Some Basic Concepts Of Chemistry Quiz Question Answer
Avogadro's number of Krypton atoms (Atomic weight = $$83.8 u$$) weigh: $$83.8 g$$
Which gas law relates the volume of a gas to the number of molecules of the gas?
What is a chemical reaction? Rearrangement of electrons in a chemical bond.
When magnesium is burnt in air, the weight of magnesium : increases
What percent of a sample of nitrogen must be allowed to escape if its temperature, pressure, and volume are to be changed from $$220^oC$$,3 atm and 1.65 L to $$110^oC$$, 0.7 atm and 1 L respectively? $$81.8\%$$
A mixture of $$S{O_2}$$ and $${O_2}$$ was made to react in such a way that every gram of mixture gives maximum amount of $$S{O_3}$$. The mass % of $$S{O_2}$$ in the mixture is  80 %
What is atomic mass of $$He$$ in amu $$(u)$$ units? $$4$$
What should be the weight of $$50\%$$ $$HCl$$ which reacts with $$100g$$ of limestone? $$50%$$ pure
If Avogadro number $$N_A$$ is changed from $$6.022\times 10^{23} mol^{-1}$$ to $$6.022\times 10^{20} mol^{-1}$$, this would change : the mass of one mole of carbon
A certain sample of element Z contains 60% of $$^{69}{Z}$$ and 40% $$^{71}{Z}$$ . What is the relative atomic mass of element Z in this sample? 69.8

### States Of Matter Gases And Liquids Questions and Answers

States Of Matter Gases And Liquids Quiz Question Answer
Which of the following gas mixture is not applicable for Dalton's law of particle pressure? $$SO_2$$ and $$Cl_2$$
The value of gas constant per mole is approximately- $$2\ cal$$
A constant gas temperature is based on Charles's law
Gay Lussac law gives relation between: $$P\,$$and$$\,T$$
The three phases of water (Solid, Liquid, Gas) are: ice, water, steam
Identify which of the following statements is FALSE? During a phase transition, the temperature of a substance must be constant.
$$\Delta_f G^{\circ}$$ at 500 K for substance 'S' in liquid state and gaseous state are +100.7 kcal $$mol^{-1}$$ respectively. Vapour pressure of liquid 'S'' at 500 K is approximately equal to:

$$R = 2 cal K^{-1} mol^{-1}$$
0.1 atm
All kind of matter is made up of extremely small particles called ___________. atom
Which term describes the mass of $$6.022\times { 10 }^{ 23 }$$ representative particles? Molar mass
Total pressure of a gaseous mix is equal to the sum of the Partial Pressures is:
Dalton's law

### Structure Of Atom Questions and Answers

Structure Of Atom Quiz Question Answer
The magnetic field at the center of a hydrogen atom due to the motion of electron varies with the principal quantum number as $$1/n^{5}$$
The equivalent weight of a metal is 4.5 and the molecular weight of its chloride isFind the atomic weight of the metal. 9
Which of the following statements about the radioactivity of an element is incorrect? Its rate is affected by change in temperature and/or pressure
The Bohr model for the spectra of a H- atom Will not be applicable for a He - atom
An element 'A' emits an $$\alpha$$ -particle and forms 'B'. 'A' and 'B' are Isodiapheres
Ejection of the photoelectron from metal in the photoelectric effect experiment can be stopped by applying $$0.5\ V$$ when the radiation of $$250\ nm$$ is used. The work function of the metal is: $$4.5\ eV$$
Which of the following has the correct combination considering $$List-I$$ and $$List-II$$?
$$(I),(T)$$
For which one of the following, Bohr model is not valid?
Singly ionised neon atom $$(Ne^+)$$
Assertion: Atoms are not electrically neutral.
Reason: Number of protons and electrons are different.
Both assertion and reason statements are wrong.
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

### The P-Block Elements Questions and Answers

The P-Block Elements Quiz Question Answer
The correct B --- F bond length follows the sequence : $${ { BF }_{ 3 } }\quad <\quad { BF }_{ 4 }^{ - }\quad <\quad { BF }_{ 2 }{ OH }\quad <\quad { BF }_{ 2 }{ NH }_{ 2 }$$
Which of the following is a semiconductor? $$Ge$$
Which of the following statements is correct? Electron precise hydrides have tetrahedral geometries
Colemanite is a mineral of: $$B$$
Which of the following forms $$M_{2}O$$ type of oxide? Tl
The possible oxidation state of Tl are: +1 and +3
The species, having bond angles of $$120^{\circ}$$ is: $$BCl_3$$
In the following statements, select the correct statement :
$$N(SiH_3)_3$$ shows planar arrangement.
Hybridisation of silicon atom in silica is :

$$sp^{3}$$
Aluminium is usually found in $$+3$$ oxidation state. In contrast, thallium exists in $$+1$$ and $$+3$$ oxidation states. This is due to :  inert pair effect

#### Thermodynamics Class 11 Medical Chemistry MCQ Quiz

A chemical reaction is spontaneous at 298 K but non-spontaneous at 350 K. Which one of the following is true for the reaction? $$\Delta G\quad \Delta H\quad \Delta S\\ -\quad \quad -\quad \quad -$$
Which of the following statements regarding Gibb's energy change is correct? If $$\Delta$$G is negative (< 0), the process is spontaneous.
$$\triangle H$$ = - 336.2 kcal. What is the value of $$\triangle U$$ approximately at 300 K for the same reaction (R = 2 cal $$degre{ e }^{ -1 }$$ $$mo{ l }^{ -1 }$$)?
- 335.0 kcal
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are  point function
The INCORRECT match in the following is : $$\Delta G^0 < 0,K< 1$$
Which of the following property is not a thermodynamic property of the system? heat
Which heat depends on the direction of current? Peltier heat
An ideal gas undergoes a cyclic process as shown in Figure.

$$\Delta U_{BC}=-5$$ kJ $$mol^{-1}$$, $$q_{AB}=2$$ kJ $$mol^{-1}$$

$$W_{AB}=-5$$ kJ $$mol^{-1}$$, $$W_{CA}=3$$ kJ $$mol^{-1}$$

Heat absorbed by the system during process CA is:

$$+5$$ kJ $$mol^{-1}$$
The combustions of benzene (l) gives $$CO_2(g)$$ and $$H_2O(l)$$. Given that heat of combustion of benzene at constant volume is $$-3263.9 \ kJ\, mol^{-1}$$ at $$25^oC$$, heat of combustion (in $$kJ\,mol^{-1}$$) of benzene at constant pressure will be:
$$(R =8.314JK^{-1}\,mol^{-1})$$
$$-3267.6$$
The standard Gibbs energy for the given cell reaction in $$kJ$$ $${mol}^{-1}$$ at $$298K$$ is:$$Zn(s)+{Cu}^{2+}(aq)\rightarrow {Zn}^{2+}(aq)+Cu(s)$$

$${E}^{o}_{cell}=2V$$ at $$298K$$
(Faraday's constant, $$F=96000\ C{mol}^{-1}$$)
$$-384$$

### The S-Block Elements Questions and Answers

The S-Block Elements Quiz Question Answer
Which of the following is organometalic compound  Methyl lithium
Incorrect statement about given carbohydrate is
Above compound is a non-reducing sugar
Which of the following product is obtained when bleaching powder is distilled with acetone? none of the above
Lithium react less vigorously with water than other metals. Give reason behind it. Lithium has small size and very high hydration energy.
Diagonal relationship is found in between  $$A\ and\ C\ both$$
The alkaline earth metal ion present in chlorophyll is $$Mg$$
Among the alkaline earth metals, the element forming predominantly covalent compounds is Be
The ionization energy of a hydrogen atom is 13.6eV. The energy of the third-lowest electronic level in doubly ionized lithium (Z=3) is: -122.4eV
Correct order is : $$\mathrm { MgO } < \mathrm { NiO } < \mathrm { K } _ { 2 } \mathrm { O } < \mathrm { CS } _ { 2 } {O }$$ (basic strength )
The melting point of lithium (181$$^\circ$$C) is just double the melting point of sodium (98$$^\circ$$C) because down the group, the cohesive energy decreases

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