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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Category: Chemistry

Q.116 Phenol does not evolve CO2 from NaHCO3 like carboxylic acids because phenol is

2 / 100

Category: Chemistry Ch 12 Class 12

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

NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:

3 / 100

Category: Chemistry Ch 2 Class 11

If the distribution co-efficient is small then the solute will:

4 / 100

Category: Chemistry Ch 3 Class 11

An example of a solution not in equilibrium is:

NTS 2016 DUHS & JSMU
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

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 8 Class 12

In alkanes all carbon atoms are linked by bond

7 / 100

Category: Chemistry

Q.94 Which of the following spherical subshell for valance electrons

8 / 100

Category: Chemistry Ch 4 Class 12

Which one of the following Is a vulcanizing agent?

9 / 100

Category: Chemistry Ch 10 Class 11

Decrease in Oxidation number is

PMC Sample 2
Chemistry
Electrochemistry
Elimination Tool:

10 / 100

Category: Chemistry Ch 1 Class 11

The number of neutrons in H2SO4 are ____.

PMC Practice 26
Chemistry
Introduction to Fundamental Concepts of Chemistry
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11 / 100

Category: Chemistry Ch 7 Class 11

Which one is not related to evaporation?

NUMS 2015
Chemistry
Thermochemistry
States of Matter
States of Matter – Gases, Liquids and Solids
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12 / 100

Category: Chemistry Ch 4 Class 12

The colour of transition metal complexes is due to:

NTS 2019
Chemistry
d and f Block Elements
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13 / 100

Category: Chemistry Ch 7 Class 12

The active part in organic molecules is called:

NUMS 2014
Chemistry
Fundamental Principles of Organic Chemistry
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14 / 100

Category: Chemistry Ch 11 Class 11

Half life period of the first order reaction depends upon:

NUMS 2015
Chemistry
Reaction Kinetics
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15 / 100

Category: Chemistry Ch 1 Class 12

Which statement is true about electron affinity?

NUMS 2020
Chemistry
Periodicity in Elements
Chemical Bonding
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16 / 100

Category: Chemistry Ch 13 Class 12

Which one has fruity smell?

17 / 100

Category: Chemistry Ch 1 Class 11

In which of the following will water evaporate earlier?

PMC Practice 1
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

18 / 100

Category: Chemistry Ch 6 Class 11

Which of the following has maximum Ionization energy?

19 / 100

Category: Chemistry Ch 1 Class 11

0.5 mole of SO2 contains gram of oxygen?

20 / 100

Category: Chemistry Ch 9 Class 12

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

21 / 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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22 / 100

Category: Chemistry Ch 3 Class 12

In 3rd series of transition elements, paramagnetic behaviour is maximum for Mn +2 and :

PMC 2020
Chemistry
d and f Block Elements
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23 / 100

Category: Chemistry Ch 3 Class 12

Aluminum reacts with H2SO4 to produce

24 / 100

Category: Chemistry Ch 1 Class 12

Triads were introduced by

25 / 100

Category: Chemistry Ch 1 Class 11

What is the percentage by mass of Nitrogen in NH4(NO3)?

26 / 100

Category: Chemistry Ch 1 Class 12

What is a complex/coordination compound?

PMC Sample 1
Chemistry
Periodicity in Elements
Elimination Tool:

27 / 100

Category: Chemistry Ch 14 Class 12

Allotropes are of same?

PMC Practice 2
Chemistry
Macromolecules
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28 / 100

Category: Chemistry Ch 2 Class 12

The most dense element is:

NTS 2013
Chemistry
s and p Block Elements
Elimination Tool:

29 / 100

Category: Chemistry

Q.150 Who attributed the deviation of real gases from ideal behavior?

30 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following is an example of a co-polymer?

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

31 / 100

Category: Chemistry Ch 16 Class 12

Function of ozone Is?

32 / 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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33 / 100

Category: Chemistry Ch 10 Class 12

RMgX is an organometallic compound, generally known as:

NTS 2012
Chemistry
Alkyl Halides and Amines
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34 / 100

Category: Chemistry Ch 13 Class 12

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

PMC Practice 3
Chemistry
Carboxylic Acids and its Derivatives
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35 / 100

Category: Chemistry

Q.157 Shifting the position of equilibrium can be used to Increase

36 / 100

Category: Chemistry Ch 2 Class 12

Metals belonging to the same group in the periodic table are

NUMS 2014
Chemistry
s and p Block Elements
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37 / 100

Category: Chemistry Ch 5 Class 11

Choose the value of the Rydberg constant among the following values:

NUMS 2014
Chemistry
Atomic Structure
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38 / 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
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39 / 100

Category: Chemistry

Which of the following are the fundamental ways of transferring energy?

NUMS Mock 3
Chemistry
Thermochemistry

40 / 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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41 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is secondary pollutant?

NUMS 2019 Reconduct
Chemistry
Environmental Chemistry
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42 / 100

Category: Chemistry

Aromatic compounds burn with a sooty flame because:

NUMS Mock 3
Chemistry
Fundamental Principles of Organic Chemistry

43 / 100

Category: Chemistry Ch 8 Class 12

The general formula of Methane Dichloride is:

44 / 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
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45 / 100

Category: Chemistry Ch 4 Class 11

The e/m value is maximum for _____ gas becauseof _____ value of “m” for positive rays obtained from it.

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
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46 / 100

Category: Chemistry Ch 7 Class 11

Burning of fuel is a

47 / 100

Category: Chemistry

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

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives

48 / 100

Category: Chemistry Ch 6 Class 11

Which of the following is the correct order of electronegativity (from highest to lowest)?

NTS 2015 SMBBMC
Biology
s and p Block Elements
Chemical Bonding
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49 / 100

Category: Chemistry Ch 2 Class 12

Hydrides which are prepared by passing hydrogen gas over hot alkali metals or alkaline earth metals are called:

NTS 2011
Chemistry
s and p Block Elements
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50 / 100

Category: Chemistry Ch 9 Class 11

In depression of freezing point, freezing constant Is divided by

51 / 100

Category: Chemistry

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

NUMS Mock 3
Chemistry
s and p Block Elements

52 / 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:

53 / 100

Category: Chemistry Ch 16 Class 12

Chloro-fluoro carbons cause

54 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is the most environmentally friendly source to derive energy?

NUMS 2017
Chemistry
Environmental Chemistry
Elimination Tool:

55 / 100

Category: Chemistry Ch 9 Class 12

Benzene with nitrating mixture gives?

56 / 100

Category: Chemistry Ch 5 Class 11

The maximum possible number of electrons a shell ‘n’ can accommodate is given by:

NTS 2012
Chemistry
Atomic Structure
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57 / 100

Category: Chemistry Ch 1 Class 12

Which of the following statements are correct about noble gases?

NTS 2013
Chemistry
Periodicity in Elements
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58 / 100

Category: Chemistry Ch 6 Class 11

Which of the following is paramagnetic

59 / 100

Category: Chemistry Ch 13 Class 12

If 2-butene is treated with KMnO4 the product formed will be:

60 / 100

Category: Chemistry Ch 1 Class 12

P2O5 is Hygroscopic powder which sublimes at:

NUMS 2015
Chemistry
Periodicity in Elements
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61 / 100

Category: Chemistry Ch 13 Class 12

The carbonic acid which Is named after butter is:

62 / 100

Category: Chemistry

Q.30 How meta directing groups affect the Electrophilic substitution of benzene ring?

63 / 100

Category: Chemistry Ch 9 Class 11

Human blood maintains its pH between

UHS 2016
Chemistry
Solution and Colloids
Elimination Tool:

64 / 100

Category: Chemistry Ch 11 Class 12

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

NUMS 2017
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

65 / 100

Category: Chemistry

Which of the following is the percentage of the original quantity of a radioactive material left after five half-lives approximately.

NUMS Mock 4
Physics
Nuclear Physics

66 / 100

Category: Chemistry Ch 1 Class 11

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

67 / 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:

68 / 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:

69 / 100

Category: Chemistry

Q.7 Which of the following forces have no relation with valence electrons?

70 / 100

Category: Chemistry Ch 11 Class 12

Ethers are very good:

71 / 100

Category: Chemistry Ch 8 Class 11

For a gaseous phase reaction, when number of moles of reactants and products are equal:

PMC 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

72 / 100

Category: Chemistry Ch 6 Class 12

Which of the following states of copper Is more stable?

73 / 100

Category: Chemistry

 

Q.107  When 1- Butene reacts with cold dilute KMnO4 in basic media, the product formed will be

74 / 100

Category: Chemistry Ch 1 Class 12

NaNO3 on heating gives:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

75 / 100

Category: Chemistry Ch 15 Class 12

Which of the following would react with ozone in the atmosphere?

UHS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

76 / 100

Category: Chemistry Ch 10 Class 11

In the electrolysis of molten ZnCl2, how much Zn can be deposited at the cathode by the passage of 0.01 ampere for one hour?

NUMS 2017
Chemistry
Electrochemistry
Elimination Tool:

77 / 100

Category: Chemistry

Q.123 Which of the following is succinic acid?

78 / 100

Category: Chemistry

Which of the following is the most environmentally friendly source to derive energy?

NUMS Mock 1
Chemistry
Environmental Chemistry

79 / 100

Category: Chemistry Ch 8 Class 11

A solution having pH = 0 is

80 / 100

Category: Chemistry Ch 1 Class 11

How many molecules are there in 2.1 moles of CO₂:

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

81 / 100

Category: Chemistry Ch 2 Class 11

C12H22O11+ conc. H2SO4—> 12 C + ? + H2SO4

NTS 2016 SMBBMC
Chemistry
Stoichiometry
Elimination Tool:

82 / 100

Category: Chemistry Ch 7 Class 11

Value of heat capacity of water is

83 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is TRUE regarding Methyl Alcohol?

NTS 2011
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

84 / 100

Category: Chemistry

Q.80 According to Bohr the orbits in which electrons revolve around the nucleus are

85 / 100

Category: Chemistry Ch 10 Class 11

Hydrolysis means reaction with

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

86 / 100

Category: Chemistry Ch 9 Class 11

Which statement is correct?

PMC Sample 3
Chemistry
Solution and Colloids
Elimination Tool:

87 / 100

Category: Chemistry Ch 7 Class 12

The rate of E1 reaction depends upon:

NTS 2019
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

88 / 100

Category: Chemistry Ch 8 Class 11

How will the equilibrium of the following reaction be affected if additional nitrogen is added?

N2(g) + 3H2(g)⇌ 2NH3(g)

NTS 2015 DUHS and JSMU
Chemistry
Chemical Equilibrium
Elimination Tool:

89 / 100

Category: Chemistry Ch 4 Class 11

The variation in physical properties of a crystal due to direction is called

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
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90 / 100

Category: Chemistry Ch 10 Class 12

When Grignard reagent react with water they give as a product

91 / 100

Category: Chemistry Ch 10 Class 12

Ninhydrin reacts with an amino acid to form a product that has the colour:

NUMS 2015
Chemistry
Alkyl Halides and Amines
Elimination Tool:

92 / 100

Category: Chemistry Ch 10 Class 11

The E.M.F of a Cell is equals to

PMC Sample 1
Chemistry
Electrochemistry
Elimination Tool:

93 / 100

Category: Chemistry Ch 7 Class 12

Carbonyl group is present in

94 / 100

Category: Chemistry

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

95 / 100

Category: Chemistry Ch 7 Class 12

Proton transfer within a molecule is known as:

96 / 100

Category: Chemistry Ch 2 Class 11

Given the reaction:

C3H6 + 5O2 → 3CO2 +4H2O

At STP, how many liters of O2 are needed to completely burn 5.0 liters of C3H6?

NTS 2010
Chemistry
Stoichiometry
Elimination Tool:

97 / 100

Category: Chemistry Ch 4 Class 11

The value of R (the gas constant) is

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

98 / 100

Category: Chemistry Ch 9 Class 12

Name the main product formed as a result of the following reaction

H3C – (CH2)5 – CH3 ————> Product

n-heptane

Conditions: 480 – 550 C, 150 – 399 psi V2O5

NTS 2019
Chemistry
Hydrocarbons
Elimination Tool:

99 / 100

Category: Chemistry Ch 14 Class 12

Teflon is name of:

100 / 100

Category: Chemistry Ch 2 Class 11

The chemical analysis of a compound having molecular mass 188 gives, C=12.8%, H=2.1% and Br=85.1%. Its molecular formula is:

NTS 2014
Chemistry
Stoichiometry
Elimination Tool:

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