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

1 / 100

Category: Chemistry Ch 11 Class 11

Which of the following oxides is amphoteric in character?

NUMS 2014
Chemistry
Acids, Bases and Salts
Elimination Tool:

2 / 100

Category: Chemistry Ch 10 Class 11

What is the cell reaction of

Zn(s) | Zn2+(aq) 1M | Ni2+(aq) 1M | Ni(s)

Zn2+(aq) + 2e- -> Zn(s), Eo = -0.76 V

Ni2+(aq) + 2e- -> Ni(s), Eo = -0.25 V

NUMS 2019 Cancelled
Chemistry
Electrochemistry
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3 / 100

Category: Chemistry Ch 8 Class 12

Benzene can be prepared from:

PreMedPK MDCAT Mock 2
Chemistry
Hydrocarbons
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4 / 100

Category: Chemistry Ch 6 Class 11

Which of the following has the largest dipole moment?

5 / 100

Category: Chemistry Ch 5 Class 11

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

6 / 100

Category: Chemistry Ch 7 Class 11

The heat of a reaction can be calculated by using:

NTS 2010
Chemistry
Thermochemistry
Elimination Tool:

7 / 100

Category: Chemistry Ch 6 Class 12

Which of the following has the lowest boiling point?

8 / 100

Category: Chemistry Ch 3 Class 12

Borax bead test is used to separate:

9 / 100

Category: Chemistry Ch 7 Class 11

Value of heat capacity of water is

10 / 100

Category: Chemistry

The influence of temperature on reaction rate is predicted by:

NUMS Mock 1
Chemistry
Reaction Kinetics

11 / 100

Category: Chemistry Ch 6 Class 11

Hybridization in BeCl2 Is a

12 / 100

Category: Chemistry Ch 11 Class 11

Type of reactants or product decides the nature of method adapted for finding

PMC Sample 1
Chemistry
Reaction Kinetics
Elimination Tool:

13 / 100

Category: Chemistry Ch 8 Class 12

In Alkenes the Carbon atoms are connected to each other by a

14 / 100

Category: Chemistry Ch 2 Class 12

Which of the following statements about H2S is false:

NTS 2010
Chemistry
s and p Block Elements
Elimination Tool:

15 / 100

Category: Chemistry Ch 3 Class 12

Orthoboric acid can NOT be obtained by which of the following?

16 / 100

Category: Chemistry Ch 3 Class 11

According to the general gas equation, density of an ideal gas depends upon:

PMC 2020
Chemistry
States of Matter – Gases, Liquids and Solids
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17 / 100

Category: Chemistry Ch 6 Class 11

Which noble gas has highest ionization energy?

18 / 100

Category: Chemistry Ch 3 Class 11

The Vander Waal’s constant ‘If of a gas Is four times the:

19 / 100

Category: Chemistry Ch 7 Class 12

Carbonyl group is present in

20 / 100

Category: Chemistry

What type of chemical reaction is this?
CH3CHO + NH3 -> CH3CH(OH)NH2

NUMS Mock 3
Chemistry
Aldehydes and Ketones

21 / 100

Category: Chemistry Ch 15 Class 12

______ is needed in thyroxine, the hormone of thyroid gland.

NTS 2012
Chemistry
Chemistry of Life
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22 / 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?

23 / 100

Category: Chemistry Ch 7 Class 12

Example of a nucleophile is:

NUMS 2019 Cancelled
Chemistry
Fundamental Principles of Organic Chemistry
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24 / 100

Category: Chemistry Ch 6 Class 11

Every sp3 orbital is oriented in space In such a way that angle between them is:

25 / 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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26 / 100

Category: Chemistry Ch 10 Class 11

The oxidation number of Br in Br2 is:

NTS 2019
Chemistry
Electrochemistry
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27 / 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:

28 / 100

Category: Chemistry

Which of the following will not undergo aldol condensation?

NUMS Mock 2
Chemistry
Aldehydes and Ketones

29 / 100

Category: Chemistry Ch 1 Class 11

Which of the following has six isotopes?

PMC Practice 4
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

30 / 100

Category: Chemistry Ch 8 Class 11

In the reaction, 2SO2 (g) + O2 ⇌ 2SO3 (g) ∆H= +X cal most favorable conditions of temperature and pressure for a greater yield of SO2 are:

NTS 2014
Chemistry
Chemical Equilibrium
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31 / 100

Category: Chemistry Ch 5 Class 11

Maximum ____ electrons can be placed in one orbital:

NUMS 2020
Chemistry
Atomic Structure
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32 / 100

Category: Chemistry Ch 1 Class 11

Chemical properties of an atom depends upon number of

33 / 100

Category: Chemistry Ch 4 Class 12

What are interstitial compounds?

PMC Sample 2
Chemistry
d and f Block Elements
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34 / 100

Category: Chemistry Ch 9 Class 12

Acetylene upon heating at 300 C gives:

35 / 100

Category: Chemistry

Q.153 The properties of liquid crystals are intermediate b/w crystals and

36 / 100

Category: Chemistry Ch 6 Class 11

The boiling point of water is higher than other hydrides because water molecules can form:

NTS 2018
Chemistry
Chemical Bonding
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37 / 100

Category: Chemistry Ch 1 Class 11

If the number of molecules of different gases are the same at S.T.P., the occupied volume will be _____.

PMC Practice 24
Chemistry
Introduction to Fundamental Concepts of Chemistry
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38 / 100

Category: Chemistry

Q.90 Which of the following propefties belong to acetic acid?

39 / 100

Category: Chemistry Ch 7 Class 12

Diethyl ether and n-butanol are:

NUMS 2019 Reconduct
Chemistry
Fundamental Principles of Organic Chemistry
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40 / 100

Category: Chemistry Ch 1 Class 11

Natural gas in homes burns in excess of oxygen, what is the limiting reactant in this case?

PMC 2021 Tested
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

41 / 100

Category: Chemistry Ch 9 Class 12

Stability of benzene is due to

42 / 100

Category: Chemistry Ch 11 Class 11

The colour of methyl orange in base is?

NTS 2015 SMBBMC
Chemistry
Acids, Bases and Salts
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43 / 100

Category: Chemistry Ch 5 Class 11

In a discharge tube, at room pressure there is

44 / 100

Category: Chemistry Ch 10 Class 11

Which one among the following is the strongest reducing agent:

Fe2++ 2e -> Fe (-0.44V)

Sn2++ 2e -> Sn (-0.14 V)

Ni2++ 2e -> Ni (0.25 V)

Fe3++ e -> Fe2+(-0.77 V)

NUMS 2018
Chemistry
Electrochemistry
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45 / 100

Category: Chemistry

Which of the following has maximum Hydration power?

NUMS Mock 3
Chemistry
Chemical Bonding

46 / 100

Category: Chemistry Ch 3 Class 11

Excluded volume is not equal to the actual volume of gas molecules and is represented by:

47 / 100

Category: Chemistry Ch 3 Class 12

Which of the following transition metals in its ground state have unpaired electrons in an s-orbital?

NUMS 2015
Chemistry
d and f Block Elements
Elimination Tool:

48 / 100

Category: Chemistry Ch 1 Class 11

What will be the mass in grams of 12 gram atom of carbon atoms?

49 / 100

Category: Chemistry

Q.21 SN reaction is a_______________?

50 / 100

Category: Chemistry Ch 7 Class 12

CH3CH2CH2COCH3 is the functional isomer of:

NTS 2016 DUHS & JSMU
Chemistry
Fundamental Principles of Organic Chemistry
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51 / 100

Category: Chemistry Ch 9 Class 11

0.5 molar solution NaOH contains:

NUMS 2020
Chemistry
Solution and Colloids
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52 / 100

Category: Chemistry Ch 15 Class 12

Polystyrene is an additional polymer. Which one of the following structures represents
the monomer of polystyrene?

UHS 2014
Chemistry
Environmental Chemistry
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53 / 100

Category: Chemistry Ch 13 Class 12

Which one is the carbonyl protecting group?

54 / 100

Category: Chemistry Ch 4 Class 11

The formula of Chile Saltpeter is?

PMC Practice 5
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

55 / 100

Category: Chemistry Ch 7 Class 12

Na, Ca & Mg are

56 / 100

Category: Chemistry

What is the correct name for this structure?

NUMS Mock 1
Chemistry
Fundamental Principles of Organic Chemistry

57 / 100

Category: Chemistry Ch 10 Class 12

Tertiary alkyl  hallides follow which of the following mechanism when attacked by a Nucleophile?

58 / 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:

59 / 100

Category: Chemistry Ch 6 Class 11

The bonds present in N2O5 are:

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

60 / 100

Category: Chemistry Ch 3 Class 11

Half atmospheric pressure is:

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

61 / 100

Category: Chemistry

The stability in the following structure is due to the:

NUMS Mock 4
Chemistry
Chemical Bonding

62 / 100

Category: Chemistry

Q.15 In NaCl crystal, chloride ions present at the face center are distributed in

63 / 100

Category: Chemistry Ch 1 Class 12

Outer transition elements belong to

NTS 2013
Chemistry
Periodicity in Elements
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64 / 100

Category: Chemistry Ch 9 Class 11

Which of the following concentration unit is temperature dependent

ETEA 2019
Chemistry
Solution and Colloids
Elimination Tool:

65 / 100

Category: Chemistry Ch 8 Class 11

66 / 100

Category: Chemistry Ch 7 Class 12

The active part in organic molecules is called:

NUMS 2014
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

67 / 100

Category: Chemistry

In a reaction:
A+B 2C when equilibrium was attained, the concentration was
[A]=[B]=4 moles/dm3
[C]=6 moles/dm3
the equilibrium constant Kc of this reaction is:

NUMS Mock 4
Chemistry
Chemical Equilibrium

68 / 100

Category: Chemistry Ch 8 Class 12

20 cm3 of a gaseous hydrocarbon was completely burnt in an excess of oxygen 60 cm3 of carbon dioxide and 40 cm3 of water vapours were formed, all volumes being measured at the same temperature and pressure. What is the formula of the hydrocarbon?

NTS 2015 SMBBMC
Chemistry
Hydrocarbons
Elimination Tool:

69 / 100

Category: Chemistry Ch 12 Class 12

Cyanohydrins can be synthesized from ketones through:

PreMedPK MDCAT Mock 4
Chemistry
Aldehydes and Ketones
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70 / 100

Category: Chemistry

Q.113 From which of the following ketone can be prepared?

71 / 100

Category: Chemistry Ch 6 Class 11

GN lewis described which one of the following bonds?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
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72 / 100

Category: Chemistry

Q.28 Fuels with higher octane number can be produce by_________?

73 / 100

Category: Chemistry

Q86 : Which of the following is most ionic in nature

74 / 100

Category: Chemistry Ch 1 Class 12

Transition elements have coloured compounds because:

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

75 / 100

Category: Chemistry

Which of the following solids is an example of a substance with a macromolecular structure?

NUMS Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids

76 / 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:

77 / 100

Category: Chemistry Ch 10 Class 11

Which of the following exhibits an oxidation state of -3?

78 / 100

Category: Chemistry

Q.123 Which of the following is succinic acid?

79 / 100

Category: Chemistry Ch 2 Class 12

The chemical name of the baking powder is:

NTS 2011
Chemistry
s and p Block Elements
Elimination Tool:

80 / 100

Category: Chemistry Ch 10 Class 11

Oxidation state of P in Mg2P3O5 Is

81 / 100

Category: Chemistry Ch 2 Class 11

Which of the following will be separated by filtration?

82 / 100

Category: Chemistry Ch 1 Class 12

By increasing which of the following factor polarizability increases?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

83 / 100

Category: Chemistry Ch 15 Class 12

“Zymase”- a group of 14 enzymes, used in the fermentation of starch, is present in:

NTS 2010
Chemistry
Chemistry of Life
Elimination Tool:

84 / 100

Category: Chemistry

In contact process, to which substance adequate quantities of water is added to convert it to sulphuric acid?

NUMS Mock 1
Chemistry
Chemical Equilibrium

85 / 100

Category: Chemistry Ch 11 Class 11

Half-life of an element is 5 days. If we have 50,000 of its atoms, then how many atoms would be left after 10 days?

86 / 100

Category: Chemistry Ch 10 Class 11

Definition of electrode potential is?

87 / 100

Category: Chemistry

Q.177 Fluorine has highest electronegativity value that is

88 / 100

Category: Chemistry

Q.104  Which of the following does not show chain isomers

89 / 100

Category: Chemistry Ch 4 Class 11

Which of the following has the higher bond forces amount its molecules

90 / 100

Category: Chemistry Ch 10 Class 12

Grignard’s reagent on hydrolysis give

91 / 100

Category: Chemistry Ch 5 Class 12

Which of the following has highest boiling point?

92 / 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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93 / 100

Category: Chemistry

Q.37 In Lucas test, tertiary alcohols form oily layer of alkyl halid ________?

94 / 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:

95 / 100

Category: Chemistry Ch 11 Class 11

For a reaction 2A + 3B -> C
The rate law expression is given by rate = K [A]1[B]2. The order of the reaction with respect to A, B and overall order of reaction are:

NUMS 2015
Chemistry
Reaction Kinetics
Elimination Tool:

96 / 100

Category: Chemistry Ch 12 Class 12

Which of the following does not give iodoform test?

NUMS 2014
Chemistry
Aldehydes and Ketones
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97 / 100

Category: Chemistry Ch 4 Class 11

Which of the following is not a property of liquids:

98 / 100

Category: Chemistry Ch 5 Class 11

Diameter of Hydrogen atom is?

99 / 100

Category: Chemistry Ch 1 Class 11

If 9.8 g of sulfuric acid is dissolved in excess quantity of water, it will yield ____ moles of hydrogen ion (H+) and ____ mole of sulphate ions (SO4-2).

PMC Practice 26
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

100 / 100

Category: Chemistry Ch 13 Class 12

Carboxylic acids do not give the characteristics reaction of >C=O group because of:

PMC Practice 1
Chemistry
Carboxylic Acids and its Derivatives
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