Chemistry Practice Tests 3




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 3

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1 / 100

Category: Chemistry Ch 8 Class 11

If Kc = 1, then reaction is:

2 / 100

Category: Chemistry Ch 7 Class 11

Enthalpy of a compound is equal to its

NUMS 2016
Chemistry
Thermochemistry
Elimination Tool:

3 / 100

Category: Chemistry Ch 4 Class 12

Ligands having two lone pair of electrons for donation to the central transition metal ion are known as:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

4 / 100

Category: Chemistry Ch 3 Class 12

Which of the following does not act as ligand in the formation of complexes?

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

5 / 100

Category: Chemistry Ch 2 Class 11

In a vessel, 10 g N2, 10 g H2 and 10g O2 are present. Which one will have least number of atoms?

PMC 2020
Chemistry
Stoichiometry
Elimination Tool:

6 / 100

Category: Chemistry Ch 11 Class 12

Methyl alcohol is used for production of

7 / 100

Category: Chemistry Ch 8 Class 12

1,4-dimethyl benzene is called as ______.

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
Elimination Tool:

8 / 100

Category: Chemistry Ch 12 Class 12

Which of the following represent the formula of Ketone?

9 / 100

Category: Chemistry Ch 13 Class 12

Sodium Benzoate on reacting with soda lime forms:

NUMS 2015
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

10 / 100

Category: Chemistry Ch 11 Class 12

phenol, and ethers are the derivatives of?

11 / 100

Category: Chemistry Ch 4 Class 11

When animals inhale air, oxygen will move into the lungs due to difference in partial pressure of oxygen in lungs and atmosphere. This obeys

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

12 / 100

Category: Chemistry

Q.79 Salt Bridge is used for the purpose of

13 / 100

Category: Chemistry

Which of the following has the highest electrical conductivity?

NUMS Mock 2
Chemistry
Solution and Colloids

14 / 100

Category: Chemistry Ch 5 Class 11

Mass of electron in a.m.u is:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

15 / 100

Category: Chemistry Ch 10 Class 11

CH3Cl + Cl2 —-> CH2Cl2 + HCl is an example of ?

NTS 2015 SMBBMC
Chemistry
Electrochemistry
Elimination Tool:

16 / 100

Category: Chemistry Ch 15 Class 12

Ammonium nitrate contain nitrogen

17 / 100

Category: Chemistry Ch 6 Class 12

ransition elements are colored because of:

18 / 100

Category: Chemistry Ch 13 Class 12

Carboxylic acids form dimers due to _________.

PMC Practice 3
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

19 / 100

Category: Chemistry Ch 8 Class 11

If the ratio of initial concentration of the reagents is greater than the Kc then:

NTS 2011
Chemistry
Chemical Equilibrium
Elimination Tool:

20 / 100

Category: Chemistry Ch 9 Class 11

What is the molality of 92 g toluene In 250 g benzene?

21 / 100

Category: Chemistry

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

22 / 100

Category: Chemistry

The reaction: Cl2 + H2O→ HCl + HOCl is an example of:

NUMS Mock 4
Chemistry
Electrochemistry

23 / 100

Category: Chemistry Ch 7 Class 11

The measurement of heat absorbed or given out in a chemical reaction is referred to as:

NTS 2011
Chemistry
Thermochemistry
Elimination Tool:

24 / 100

Category: Chemistry

Q.106  +G108  The Markownikof’s rule is applicable only on

25 / 100

Category: Chemistry Ch 2 Class 12

Which is the paramagnetic oxide of chlorine?

NUMS 2019 Reconduct
Chemistry
s and p Block Elements
Elimination Tool:

26 / 100

Category: Chemistry Ch 4 Class 11

Structure of ice is similar to which of the following?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

27 / 100

Category: Chemistry Ch 9 Class 11

Boiling point constants help us to determine:

UHS 2012
Chemistry
Solution and Colloids
Elimination Tool:

28 / 100

Category: Chemistry Ch 11 Class 12

The compound ‘leaf alcohol’ is partly responsible for the smell of new – mown grass

CH3CH2CH=CHCH2CH2OH

Leaf alcohol

Which two compounds will be formed when ‘leaf alcohol’ is oxidized using hot, concentrated manganate (VII) ions?

PreMedPK MDCAT Mock 2
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

29 / 100

Category: Chemistry Ch 13 Class 12

High molecular mass organic compounds, upon hydrolysis yield amino acids are called _______.

PMC Sample 3
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

30 / 100

Category: Chemistry Ch 2 Class 12

The carbonates of alkali metals are soluble in water except:

NUMS 2020
Chemistry
s and p Block Elements
Elimination Tool:

31 / 100

Category: Chemistry

The presence of several fine lines in a line spectrum shows the presence of:

NUMS Mock 3
Chemistry
Atomic Structure

32 / 100

Category: Chemistry Ch 5 Class 12

Percentage of Chlorine present In bleaching powder Is:

33 / 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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34 / 100

Category: Chemistry

Q.2 The difference in the E.N values of the bonded atoms b/w two atoms is an index to_of covalent bond

35 / 100

Category: Chemistry Ch 13 Class 12

In IUPAC nomenclature, Carboxylic acids are named as_______?

PMC Sample 3
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

36 / 100

Category: Chemistry Ch 11 Class 11

Activated complex is formed due to

PMC Sample 3
Chemistry
Reaction Kinetics
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37 / 100

Category: Chemistry

Q.154 Fractions of Crude petroleum can be obtained by using

38 / 100

Category: Chemistry Ch 4 Class 12

F-block elements are called?

PMC Practice 1
Chemistry
d and f Block Elements
Elimination Tool:

39 / 100

Category: Chemistry Ch 11 Class 12

IUPAC name of wood spirit is

40 / 100

Category: Chemistry Ch 4 Class 12

The correct electronic configuration of Cr is:

PMC Practice 4
Chemistry
d and f Block Elements
Elimination Tool:

41 / 100

Category: Chemistry Ch 5 Class 11

Breaking of neutron produces?

42 / 100

Category: Chemistry Ch 9 Class 12

Friedel-Crafts Reaction can be used for the preparation of :

43 / 100

Category: Chemistry Ch 2 Class 11

A bottle of cold drink contains 200 ml liquid in which CO2 is 0.1 molar . Suppose carbon dioxide behaves like an ideal gas the volume of dissolved carbon dioxide at STP is?

NTS 2015 DUHS and JSMU
Chemistry
Stoichiometry
Elimination Tool:

44 / 100

Category: Chemistry Ch 11 Class 12

Which of the following compounds will give a secondary alcohol after reaction with NaBH4?

UHS 2019
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

45 / 100

Category: Chemistry Ch 13 Class 12

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

PMC Sample 2
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

46 / 100

Category: Chemistry Ch 2 Class 11

Water and mercury can be separated by:

47 / 100

Category: Chemistry

Which of the following does not give iodoform test?

NUMS Mock 1
Chemistry
Aldehydes and Ketones

48 / 100

Category: Chemistry Ch 11 Class 12

Primary Alcohol is produced by reactions of Grignard’s reagent with _________ followed by hydrolysis in an acidic medium.

NTS 2011
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

49 / 100

Category: Chemistry Ch 5 Class 11

Which quantum number decides energy of orbitals?

50 / 100

Category: Chemistry Ch 7 Class 12

Which of the following has the lowest vapour pressure at 20 degrees Centigrade?

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

51 / 100

Category: Chemistry

Q.164 Reaction of vinyl acetylene with HCI produces?

52 / 100

Category: Chemistry

Choose the correct statement:

NUMS Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids

53 / 100

Category: Chemistry Ch 4 Class 11

Which of the following compound has the highest boiling point?

54 / 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
Elimination Tool:

55 / 100

Category: Chemistry Ch 1 Class 11

Molecular ions are produced by passing a high energy electron beam or an x-ray beam through _______.

PMC Practice 21
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

56 / 100

Category: Chemistry Ch 5 Class 12

Electrons are most loosely bound in which of the following halogen?

57 / 100

Category: Chemistry Ch 7 Class 12

The isomers must have the same:

NTS 2013
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

58 / 100

Category: Chemistry

Q.71 Glycerol can also be termed as

59 / 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:

60 / 100

Category: Chemistry Ch 4 Class 11

Which one Is not possible a)

61 / 100

Category: Chemistry

Transfer of heat from hot surroundings to a cold refrigerator is an example of:

NUMS Mock 4
Chemistry
Thermochemistry

62 / 100

Category: Chemistry Ch 8 Class 12

Acetylene with Cl2 gives:

63 / 100

Category: Chemistry Ch 7 Class 11

Energy for the endothermic reaction is given a ____ value?

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

64 / 100

Category: Chemistry

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

NUMS Mock 4
Chemistry
Hydrocarbons

65 / 100

Category: Chemistry Ch 10 Class 11

The oxidation number of all the elements in the free state is:

NTS 2012
Chemistry
Electrochemistry
Elimination Tool:

66 / 100

Category: Chemistry Ch 14 Class 12

Proteins are present in

67 / 100

Category: Chemistry Ch 2 Class 12

Formula of Epsom salt is:

68 / 100

Category: Chemistry

Q.170 Which of the following is not a mixture of hydrocarbons?

69 / 100

Category: Chemistry Ch 3 Class 11

The compression factor (compressibility factor) for one mole of a Van der Waals gas at 0 and 100 atmosphere pressure is found to be 0.5. Assuming that the volume of gas molecule is negligible, calculate the Van der Waals constant ‘a’.

NUMS 2015
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

70 / 100

Category: Chemistry Ch 13 Class 12

What happens if we react a carboxylic acid with an acyl chloride?

NUMS 2019 Cancelled
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

71 / 100

Category: Chemistry Ch 8 Class 12

When CH3 is attached to the benzene ring, it makes the ring a:

PreMedPK MDCAT Mock 1
Chemistry
Hydrocarbons
Elimination Tool:

72 / 100

Category: Chemistry Ch 10 Class 11

Current in electrolysis is carried through?

PMC Practice 1
Chemistry
Electrochemistry
Elimination Tool:

73 / 100

Category: Chemistry Ch 8 Class 11

Equilibrium constant has no units if?

74 / 100

Category: Chemistry Ch 15 Class 12

Identify the pair of rnicronutrients:

75 / 100

Category: Chemistry Ch 3 Class 11

Upon which factor is vapour pressure not dependent:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

76 / 100

Category: Chemistry Ch 4 Class 11

What is the % relative humidity at 25 C and 0.01876 atm if the vapor pressure of water is 23.76 mm Hg.

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

77 / 100

Category: Chemistry Ch 7 Class 12

Carbonyl group is present in

78 / 100

Category: Chemistry

“The sum of all the exponents to which the molar concentration in terms in the rate equation are raised” defines:

NUMS Mock 2
Chemistry
Reaction Kinetics

79 / 100

Category: Chemistry Ch 5 Class 11

Bracket series of 14-atom is in which of the following regions of electromagnetic spectrum?

80 / 100

Category: Chemistry Ch 5 Class 11

The electronic configuration of iron is:

NTS 2011
Chemistry
Atomic Structure
Elimination Tool:

81 / 100

Category: Chemistry Ch 2 Class 12

Nascent hydrogen used in the formation of methane is obtained from the reaction of:

NTS 2010
Chemistry
s and p Block Elements
Elimination Tool:

82 / 100

Category: Chemistry Ch 12 Class 12

Ketones undergo reaction with which compound in the presence of acid to form oximes

83 / 100

Category: Chemistry Ch 5 Class 11

X-rays are defined as:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

84 / 100

Category: Chemistry

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

85 / 100

Category: Chemistry Ch 13 Class 12

By treating CO2 with Grignard’s reagent, the following compound is obtained;

NUMS 2019 Cancelled
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

86 / 100

Category: Chemistry

Q87 : Octet rule is followed by the central atom of _________ molecule

87 / 100

Category: Chemistry Ch 11 Class 12

The test used to distinguish among primary, secondary, and tertiary alcohols is:

PreMedPK MDCAT Mock 4
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

88 / 100

Category: Chemistry

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

89 / 100

Category: Chemistry

Q.176 Quantum number values for 2p orbítals are

90 / 100

Category: Chemistry Ch 2 Class 12

Which ions shall be removed to make hard water soft?

NUMS 2019 Cancelled
Chemistry
s and p Block Elements
Elimination Tool:

91 / 100

Category: Chemistry Ch 2 Class 12

Identify the correct statement:

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

92 / 100

Category: Chemistry Ch 7 Class 12

Proton transfer within a molecule is known as:

93 / 100

Category: Chemistry Ch 4 Class 12

The shape of [Co(NH3)6]3+ complex is:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

94 / 100

Category: Chemistry Ch 11 Class 12

14) Ethanol and Methanol can be separated by:

95 / 100

Category: Chemistry Ch 11 Class 11

The rate of reaction is equal to the specific rate constant, when:

96 / 100

Category: Chemistry Ch 6 Class 11

In water molecules, oxygen atom is hybridized as

97 / 100

Category: Chemistry

Q.123 Which of the following is succinic acid?

98 / 100

Category: Chemistry Ch 11 Class 12

Which of following has “higher boiling”and “melting point”?

PreMedPK MDCAT Mock 5
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

99 / 100

Category: Chemistry Ch 1 Class 11

Glucose(C6H12O6) is the most important nutrient in a cell for generating chemical potential energy, what is the mass percent of carbon in 1.5g of sample?

PMC Practice 24
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

100 / 100

Category: Chemistry Ch 5 Class 11

Spectrum of which series is in the UV region?

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