Chemistry Practice Tests 2




Entry test contains most of the Chemistry MCQs. FSC Part 2 Chemistry book MCQs. HSSC Chemistry questions MCQs. Solved Chapterwise Chemistry MCQs for first-year 12 class MCQs and 11 class MCQs. Second-year and first-year Chemistry textbooks chapter-wise MCQs with the answer are provided here. The Chemistry portion is helpful in MDCAT , ECAT , NTS NAT , and NUST NET . PakLearningSpot PLS MCQs Bank website for FREE Entry test preparations

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Chemistry Practice Test 2

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1 / 100

Category: Chemistry Ch 8 Class 11

The Haber Process is used to produce ammonia commercially according to the following equilibrium: N2(g) + 3H2g = 2NH3g + energy Which of the following conditions will produce the highest yield of ammonia?

2 / 100

Category: Chemistry Ch 4 Class 11

Water has maximum density at:

NUMS 2019 Reconduct
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

3 / 100

Category: Chemistry Ch 8 Class 11

In a exothermic process, forward direction reaction is favored by:

4 / 100

Category: Chemistry Ch 3 Class 11

Which of the following statements is true of Amorphous solids?

NTS 2011
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

5 / 100

Category: Chemistry Ch 11 Class 11

The study of rates of chemical reactions and the factors that affect the rates of chemical reactions is known as:

PMC 2020
Chemistry
Reaction Kinetics
Elimination Tool:

6 / 100

Category: Chemistry

Q.171 Which type of carboxylic acid is produced from the hydrolysis of nitriles?

7 / 100

Category: Chemistry Ch 10 Class 11

Each half reaction in ion electron method is balanced by adding:

PMC Sample 1
Chemistry
Electrochemistry
Elimination Tool:

8 / 100

Category: Chemistry Ch 5 Class 11

The Neutron was discovered by:

NTS 2018
Chemistry
Atomic Structure
Elimination Tool:

9 / 100

Category: Chemistry Ch 1 Class 11

In the ion-electron method of balancing equations, how oxygen is balanced?

PMC 2021 Tested
Chemistry
Introduction to Fundamental Concepts of Chemistry
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10 / 100

Category: Chemistry Ch 8 Class 11

Le Chatelier’s principle explains effect of all of the following except

11 / 100

Category: Chemistry

Q.33 Rate constant is denoted by?

12 / 100

Category: Chemistry Ch 2 Class 11

Equal weights of methane and hydrogen are mixed in an empty container at 25°C. The fraction of total pressure exerted by hydrogen is:

NTS 2013
Chemistry
Stoichiometry
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13 / 100

Category: Chemistry Ch 4 Class 11

In the gaseous state, the distance between the molecules is ___ times _____ than their diameters.

PMC Sample 3
Chemistry
States of Matter – Gases, Liquids and Solids
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14 / 100

Category: Chemistry

The relation between first and second ionization potentials of a given atom is:

NUMS Mock 4
Chemistry
Chemical Bonding

15 / 100

Category: Chemistry

Q.103 Left-handed helix in proteins secondary structure is called as

16 / 100

Category: Chemistry Ch 7 Class 12

Formyl group is present in

PMC Sample 1
Chemistry
Fundamental Principles of Organic Chemistry
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17 / 100

Category: Chemistry

Name the orbital n = 5; l = 2; m = 0.

NUMS Mock 1
Chemistry
Atomic Structure

18 / 100

Category: Chemistry

Q.151 An electron in an atom is completely described by its

19 / 100

Category: Chemistry Ch 11 Class 11

The rate of a gaseous reaction Is given by K [A] [B]. If the volume of the vessel containing these gases is reduced to 1/4th of the initial volume, the rate of reaction relative to the original rate would be:

NUMS 2016
Chemistry
Reaction Kinetics
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20 / 100

Category: Chemistry Ch 9 Class 12

Gasoline is a mixture of?

NUMS 2018
Chemistry
Hydrocarbons
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21 / 100

Category: Chemistry Ch 8 Class 12

The IUPAC name of the compound having structural formula CH3 — CH(OH) —COON is:

22 / 100

Category: Chemistry Ch 4 Class 12

Which one of the following does not have allotropes?

23 / 100

Category: Chemistry Ch 6 Class 11

H2O has a higher boiling point than HF because:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
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24 / 100

Category: Chemistry Ch 16 Class 12

Which of the following gases has least concentration in air a

25 / 100

Category: Chemistry Ch 13 Class 12

Which of the following reagent is required for preparation of acyl chloride (CH3COCl) from ethanoic aicd?

UHS 2019
Chemistry
Carboxylic Acids and its Derivatives
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26 / 100

Category: Chemistry Ch 9 Class 11

If 18.0 g of glucose is dissolved in 1 kg of water, boiling point of this solution should be:

UHS 2013
Chemistry
Solution and Colloids
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27 / 100

Category: Chemistry Ch 5 Class 11

For a multi-electron atom, the highest energy level among the following is:

NTS 2013
Chemistry
Atomic Structure
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28 / 100

Category: Chemistry Ch 12 Class 12

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

NUMS 2016
Chemistry
Aldehydes and Ketones
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29 / 100

Category: Chemistry Ch 2 Class 12

The false statement regarding saline hydrides is:

NTS 2014
Chemistry
s and p Block Elements
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30 / 100

Category: Chemistry Ch 1 Class 12

What is a complex/coordination compound?

PMC Sample 1
Chemistry
Periodicity in Elements
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31 / 100

Category: Chemistry Ch 3 Class 11

2 gasses at SIP, with equal volume and equal pressure will have same a

32 / 100

Category: Chemistry Ch 10 Class 11

The oxidation number of nitrogen in the HNO3 is _______.

NUMS 2018
Chemistry
Electrochemistry
Elimination Tool:

33 / 100

Category: Chemistry

Commercial hydrogen can be obtained by the action of steam on:

NUMS Mock 3
Chemistry
s and p Block Elements

34 / 100

Category: Chemistry Ch 11 Class 11

A certain chemical reaction follows the
following rate law:

Rate =K [A] [B]2 The order of reaction is:

NTS 2011
Chemistry
Reaction Kinetics
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35 / 100

Category: Chemistry Ch 10 Class 12

Grignard’s reagent on hydrolysis give

36 / 100

Category: Chemistry Ch 7 Class 12

Which process is used to produce volatile compounds?

37 / 100

Category: Chemistry

Q.165 Carboxylic acids are formed by the hydrolysis of_

38 / 100

Category: Chemistry

Q.89 Iftwo substituents are present at 1,4 positions then the isomer is called As____________?

39 / 100

Category: Chemistry

Q.160 Polymerization of ethene produces which of the followving polymer?

40 / 100

Category: Chemistry Ch 9 Class 12

Which type of bonds are broken during cracking?

PMC Practice 1
Chemistry
Hydrocarbons
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41 / 100

Category: Chemistry

All of the following substances can act as Lewis acids except:

NUMS Mock 3
Chemistry
Acids, Bases and Salts

42 / 100

Category: Chemistry Ch 10 Class 12

Which one of the following is NOT a nucleophile?

NTS 2019
Chemistry
Alkyl Halides and Amines
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43 / 100

Category: Chemistry Ch 7 Class 12

Which of the following compounds has the empirical formula, (CH2O) and reacts with sodium hydroxide?

NUMS 2019 Cancelled
Chemistry
Fundamental Principles of Organic Chemistry
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44 / 100

Category: Chemistry

Q.98 The pair of liquids having the H-bonding as dominate force of attraction in the mixture but not individually

45 / 100

Category: Chemistry Ch 6 Class 11

Structure of ammonia is:

46 / 100

Category: Chemistry Ch 11 Class 11

The unit of the rate constant is the same as that of the rate of reaction in:

PMC 2020
Chemistry
Reaction Kinetics
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47 / 100

Category: Chemistry Ch 1 Class 11

0.5 mole of SO2 contains gram of oxygen?

48 / 100

Category: Chemistry Ch 4 Class 11

The properties of liquid crystals are intermediate between crystals and:

PMC Practice 3
Chemistry
States of Matter – Gases, Liquids and Solids
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49 / 100

Category: Chemistry Ch 1 Class 12

According to which phenomenon, “the properties of elements are the periodic function of their atomic number.”

NTS 2012
Chemistry
Periodicity in Elements
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50 / 100

Category: Chemistry

The radiations from a naturally occurring radioactive substance, as seen after deflection by a magnetic field in one direction, are:

NUMS Mock 2
Chemistry
Analytical Chemistry

51 / 100

Category: Chemistry Ch 14 Class 12

) Plastic cannot be recycled by

52 / 100

Category: Chemistry Ch 6 Class 12

Transition elements are colored in which type of compounds?

53 / 100

Category: Chemistry

Q.1 The carbonyl compound which is attached with at least one H atom at one side is called as ?

54 / 100

Category: Chemistry Ch 9 Class 11

Aqueous solutions of Iodine and Sodium hydroxide were mixed in a round bottom flask at 70 C. Following chemical reaction was carried out.

3I2 + 6 NaOH -> NaIO3 + NaI + H2O
This reaction is termed as;

UHS 2019
Chemistry
Solution and Colloids
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55 / 100

Category: Chemistry Ch 10 Class 11

Which of the following is a balanced redox equation?

NUMS 2020
Chemistry
Electrochemistry
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56 / 100

Category: Chemistry

Q.98 In SNa reactions, the hybridization of carbon in moving from substart to transition state changes from?

57 / 100

Category: Chemistry

Ketones can be made by oxidation of:

NUMS Mock 2
Chemistry
Aldehydes and Ketones

58 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is not a physical property of ethers?

PreMedPK MDCAT Mock 3
Chemistry
Alcohols, Phenols and Ethers
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59 / 100

Category: Chemistry Ch 7 Class 11

The reaction 2CO + O2 -> 2CO2 proceeds slower because activation energy is:

NTS 2018
Chemistry
Thermochemistry
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60 / 100

Category: Chemistry

Q.26 A polymer called Bakelite is formed by reaction of phenol with

61 / 100

Category: Chemistry Ch 13 Class 12

For preparation of carboxylic acid, alkyl nitrite is required. Alkyl nitrite can be prepared by treating KCN with:

62 / 100

Category: Chemistry Ch 2 Class 11

A residue is obtained In which of the following methods?

63 / 100

Category: Chemistry Ch 15 Class 12

The zone where moisture is removed and clay is broken down into Al203, Si02, Fe203 is

64 / 100

Category: Chemistry

Q.117 The rate of esterification of alcohols is more for

65 / 100

Category: Chemistry Ch 6 Class 11

Which of the following molecules has no net dipole moment?

NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:

66 / 100

Category: Chemistry Ch 9 Class 11

Molarity is defined as the number of moles of any substance dissolved:

UHS 2011
Chemistry
Solution and Colloids
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67 / 100

Category: Chemistry Ch 16 Class 12

Earth’s crust Is Included In which sphere?

68 / 100

Category: Chemistry Ch 11 Class 11

The process of bringing an element in use after its complete half-life is:

69 / 100

Category: Chemistry Ch 6 Class 11

Which of the following molecules have zero Dipole moments?

NTS 2011
Chemistry
Chemical Bonding
Elimination Tool:

70 / 100

Category: Chemistry Ch 3 Class 11

Comparative rates of diffusion of He and SO2 will be _______.

NTS 2012
Chemistry
States of Matter – Gases, Liquids and Solids
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71 / 100

Category: Chemistry Ch 1 Class 11

Which of the following represents Empirical Formula of Glucose?

72 / 100

Category: Chemistry Ch 5 Class 12

Which of the following is the highest oxidizing agent?

73 / 100

Category: Chemistry Ch 10 Class 12

Alkyl halides can also be obtained by halogenation of ________.

NUMS 2018
Chemistry
Alkyl Halides and Amines
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74 / 100

Category: Chemistry Ch 8 Class 12

Which of the following compounds possesses a single covalent bond between carbon and hydrogen?

NUMS 2016
Chemistry
Hydrocarbons
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75 / 100

Category: Chemistry Ch 2 Class 12

Only two elements are present in:

NTS 2011
Chemistry
s and p Block Elements
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76 / 100

Category: Chemistry Ch 3 Class 12

A six-coordinate complex of formula CrCl3.6H2O has green color. A 0.1 M solution of the complex, when treated with an excess of AgCl, gave 28.7 g of a white precipitate. The formula of the complex would be___________.

NUMS 2019 Cancelled
Chemistry
d and f Block Elements
Elimination Tool:

77 / 100

Category: Chemistry Ch 5 Class 11

If an election jumps from 6th orbit to 2nd orbit then decrease in radius will be?

78 / 100

Category: Chemistry Ch 10 Class 12

If any amino acids contain greater number of NH2, it is:

NUMS 2019 Cancelled
Chemistry
Alkyl Halides and Amines
Elimination Tool:

79 / 100

Category: Chemistry Ch 15 Class 12

Genetic mutations occur in:

NUMS 2016
Chemistry
Chemistry of Life
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80 / 100

Category: Chemistry Ch 2 Class 12

Which of the following do not occur in Free State?

81 / 100

Category: Chemistry Ch 3 Class 11

What is the volume in cm3 of 3.01 x 10^23 molecules of O2 gas at S.T.P.?

NTS 2017
Chemistry
States of Matter – Gases, Liquids and Solids
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82 / 100

Category: Chemistry

Q.124 Ethyne has which hybridization?

83 / 100

Category: Chemistry Ch 14 Class 12

Graphite has a structural similarity with:

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

84 / 100

Category: Chemistry Ch 1 Class 11

Isotopes are the atoms of same element having different number of _____.

PMC Practice 26
Chemistry
Introduction to Fundamental Concepts of Chemistry
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85 / 100

Category: Chemistry Ch 14 Class 12

Nylon-6,6 is also called:

UHS 2018
Chemistry
Macromolecules
Elimination Tool:

86 / 100

Category: Chemistry

Q.149 There are just only a few stable compounds, formed by noble gases like

87 / 100

Category: Chemistry Ch 13 Class 12

) Which of the following is not a use of acetic acid?

88 / 100

Category: Chemistry

Q.131 BH3 has a geometry with H-B-H bond angles of 12

89 / 100

Category: Chemistry Ch 9 Class 12

Boiling point of benzene is:

90 / 100

Category: Chemistry Ch 10 Class 11

The oxidation state of “S’ in the (S2O3)-2 is:

PMC 2020
Chemistry
Electrochemistry
Elimination Tool:

91 / 100

Category: Chemistry

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

NUMS Mock 4
Chemistry
Aldehydes and Ketones

92 / 100

Category: Chemistry Ch 10 Class 12

In the reaction of m- chlorotoluene with KNH2 in liquid NH3, the major product is:

NUMS 2016
Chemistry
Alkyl Halides and Amines
Elimination Tool:

93 / 100

Category: Chemistry Ch 16 Class 12

Which of the following causes suffocation?

94 / 100

Category: Chemistry Ch 1 Class 12

Which if the following has the greatest difference between it’s first and second ionization energies?

NUMS 2014
Chemistry
Periodicity in Elements
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95 / 100

Category: Chemistry Ch 14 Class 12

Allotropes are of same?

PMC Practice 2
Chemistry
Macromolecules
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96 / 100

Category: Chemistry Ch 1 Class 12

ZnH2 is an example of?

NTS 2015 SMBBMC
Chemistry
Periodicity in Elements
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97 / 100

Category: Chemistry Ch 2 Class 11

78 g of a hydrocarbon occupies 22.414 ml of volume at S.T.P. The empirical formula of the hydrocarbon is CH. The molecular formula of this hydrocarbon is:

NUMS 2014
Chemistry
Fundamental Principles of Organic Chemistry
Stoichiometry
Analytical Chemistry
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98 / 100

Category: Chemistry Ch 1 Class 12

Smallest element in the periodic table is?

99 / 100

Category: Chemistry Ch 9 Class 12

How many chain isomers of Pentane is possible?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

100 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is not a derivative of benzene?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
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