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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Category: Chemistry

Which one of the following reagents is used to distinguish between aldehydes and ketones?

NUMS Mock 1
Chemistry
Aldehydes and Ketones

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Category: Chemistry

Q.133 Metals look shiny as light falls on metal surface collide with mobile electrons and make them these electron gives light when

3 / 100

Category: Chemistry Ch 1 Class 11

Limiting reactant controls the amount of _.

PMC Practice 27
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

4 / 100

Category: Chemistry Ch 7 Class 11

If a system absorbs heat, the surrounding temperature

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Category: Chemistry Ch 15 Class 12

Which of the following pollutant decolorize the skin?

ETEA 2019
Chemistry
Environmental Chemistry
Elimination Tool:

6 / 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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Category: Chemistry

Q.180 Enzymes speed up the reaction upto

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Category: Chemistry Ch 11 Class 12

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

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

9 / 100

Category: Chemistry Ch 6 Class 11

In HF the covalent bond is due to:

NTS 2016 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

10 / 100

Category: Chemistry Ch 11 Class 12

Which of the following esters give a Jasmine Flavour?

PreMedPK MDCAT Mock 2
Chemistry
Alcohols, Phenols and Ethers
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11 / 100

Category: Chemistry Ch 9 Class 11

The pH of a solution can be kept constant by:

2022 PMC Test 2
Chemistry
Solution and Colloids
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12 / 100

Category: Chemistry Ch 15 Class 12

What is formed by a series of complex reactions of ozone with water in the troposphere that are driven by sunlight?

NUMS 2019 Cancelled
Chemistry
Environmental Chemistry
Elimination Tool:

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Category: Chemistry Ch 15 Class 12

The unit ___ is commonly used by meteorologists

PMC Sample 3
Chemistry
Environmental Chemistry
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14 / 100

Category: Chemistry

When was electron discovered?

15 / 100

Category: Chemistry Ch 4 Class 11

Water boils when:

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Category: Chemistry Ch 7 Class 11

Lattice Energy of ionic compounds are found by

PMC Sample 3
Chemistry
Chemical Bonding
Thermochemistry
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Category: Chemistry Ch 11 Class 12

Primary, Secondary Tertiary alcohols can be distinguished by Lucas test in which .. appear

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Category: Chemistry Ch 1 Class 11

Chemical properties of an atom depends upon number of

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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
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Category: Chemistry Ch 2 Class 12

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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21 / 100

Category: Chemistry

The shape of CO2 molecule is similar to:

NUMS Mock 2
Chemistry
Chemical Bonding

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Category: Chemistry Ch 8 Class 11

Which of the following reaction has greater Kp than Kc?

PMC 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

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Category: Chemistry Ch 7 Class 11

Anything under test or observation in laboratory is called

PMC Sample 2
Chemistry
Thermochemistry
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Category: Chemistry Ch 15 Class 12

How many grams of micronutrients are needed by 1 acre of land?

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Category: Chemistry Ch 9 Class 11

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

UHS 2011
Chemistry
Solution and Colloids
Elimination Tool:

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Category: Chemistry

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

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Category: Chemistry

Q.18 The increase in size of an anion is due to increase n repulsion of

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Category: Chemistry Ch 13 Class 12

Which of the following reagents will reduce butanoic acid to butanol?

NUMS 2016
Chemistry
Carboxylic Acids and its Derivatives
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Category: Chemistry Ch 4 Class 12

d-block elements are present _____________ in the periodic table ?

PMC Sample 3
Chemistry
d and f Block Elements
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30 / 100

Category: Chemistry

Vinyl bromide can be prepared from:

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Category: Chemistry Ch 11 Class 11

The rate of reaction:

NUMS 2020
Chemistry
Reaction Kinetics
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Category: Chemistry Ch 4 Class 12

Formula of laughing gas is?

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Category: Chemistry

Which of the following does not show variable valency?

NUMS Mock 3
Chemistry
Atomic Structure

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Category: Chemistry Ch 7 Class 11

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

NTS 2018
Chemistry
Thermochemistry
Elimination Tool:

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Category: Chemistry

Q.40 Octane number of n-heptane is____________?

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Category: Chemistry Ch 6 Class 11

Surface tension in a liquid is caused by?

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
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Category: Chemistry Ch 9 Class 11

Which one is the correct formula for molar mass of solute In case of boiling point elevation? x

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Category: Chemistry Ch 9 Class 12

The four bonds of carbon in methane are directed towards the corners of a:

NUMS 2014
Chemistry
Hydrocarbons
Elimination Tool:

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Category: Chemistry

Q.173 Critical temperature of ammonia is C

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Category: Chemistry Ch 7 Class 12

In alkanes, each carbon has hybridization:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
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Category: Chemistry Ch 9 Class 12

Alkenes undergo:

UHS 2019
Chemistry
Hydrocarbons
Elimination Tool:

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Category: Chemistry Ch 7 Class 12

Which of the following is/are organic?

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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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Category: Chemistry

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

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Category: Chemistry Ch 9 Class 11

Which one of the following statements is incorrect?

NUMS 2018
Chemistry
Solution and Colloids
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Category: Chemistry Ch 5 Class 11

Which pair has 1 electron in it’s ‘s’ orbital?

PMC 2020
Chemistry
Atomic Structure
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Category: Chemistry Ch 4 Class 11

Which of the following properties does not belong to Gases?

PMC Practice 5
Chemistry
States of Matter – Gases, Liquids and Solids
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Category: Chemistry Ch 11 Class 11

Which of the following acids is used for Etching glass?

NTS 2011
Chemistry
Acids, Bases and Salts
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Category: Chemistry Ch 8 Class 12

How many chain isomers are shown by C5H12?

NTS 2018
Chemistry
Hydrocarbons
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Category: Chemistry

CH3CN + NCI > A + B in presence of water in the above reaction A and B are

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Category: Chemistry

Q.102 The hetero atom present in furan is

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Category: Chemistry Ch 6 Class 12

Which of the following has the lowest boiling point?

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Category: Chemistry Ch 5 Class 11

) The velocity of electron in outermost shell Is?

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Category: Chemistry Ch 8 Class 11

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

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Category: Chemistry Ch 4 Class 12

The formula of Chile Peter salt is

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Category: Chemistry Ch 11 Class 11

Common name of Octadecanoic acid is:

NTS 2016 DUHS & JSMU
Chemistry
Acids, Bases and Salts
Macromolecules
Elimination Tool:

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Category: Chemistry

A certain radioactive isotope has a half-life of 50 days. Fraction of the material left behind after 100 days will be:

NUMS Mock 2
Chemistry
Analytical Chemistry

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Category: Chemistry Ch 5 Class 11

The spectrum of He is expected to be similar to that of:

NUMS 2014
Chemistry
Atomic Structure
Elimination Tool:

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Category: Chemistry

Q.165 Carboxylic acids are formed by the hydrolysis of_

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Category: Chemistry Ch 3 Class 11

1 liter of a gas weighs 2 g at 300 K and 1 atm pressure. If the pressure is made 0.75 atm, at which of the following temperatures will 1 L of the same gas weigh 1 g?

NTS 2017
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

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Category: Chemistry Ch 8 Class 11

1 mole of N2O4 (g) was placed in an empty 1 dm^3 container and allowed to reach equilibrium according to the following equation:

N2O4(g) 2NO2(g)

At equilibrium, x mole Of N2O4 (g) had dissociated. What is the value of the equilibrium constant, Kc, at the temperature of the Experiment?

NTS 2016 SMBBMC
Chemistry
Chemical Equilibrium
Elimination Tool:

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Category: Chemistry Ch 3 Class 12

Variable valency is generally exhibited by:

NUMS 2014
Chemistry
d and f Block Elements
Elimination Tool:

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Category: Chemistry

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

NUMS Mock 3
Chemistry
Thermochemistry

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Category: Chemistry Ch 5 Class 11

If an electron of hydrogen atom jumps from 5th orbit to 7’h orbit, its atomic radius increases

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Category: Chemistry Ch 11 Class 12

Either Is dangerous In which of the following states?

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Category: Chemistry Ch 9 Class 11

Colligative Properties depend upon: a

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Category: Chemistry Ch 14 Class 12

Bakelite is a polymer of formaldehyde and __________.

NUMS 2018
Chemistry
Macromolecules
Elimination Tool:

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Category: Chemistry Ch 12 Class 12

Consider the following reaction:

R―CHO + 2[Ag(NH3)2]OH → R―COONH4 + 2Ag + 2NH3 + H2O This reaction represents one of the following tests.

PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Elimination Tool:

69 / 100

Category: Chemistry

Q.38 Water is considered as a Universal solvent because of which properties?

70 / 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:

71 / 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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72 / 100

Category: Chemistry Ch 13 Class 12

In IUPAC nomenclature, Carboxylic acids are named as_______?

PMC Sample 3
Chemistry
Carboxylic Acids and its Derivatives
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73 / 100

Category: Chemistry Ch 1 Class 12

Which of the following is not the use of bleaching powder?

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
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74 / 100

Category: Chemistry

Both ionic and covalent bonds are present in:

NUMS Mock 3
Chemistry
Chemical Bonding

75 / 100

Category: Chemistry Ch 7 Class 11

A catalyst increases the rate of reaction by:

NTS 2019
Chemistry
Thermochemistry
Elimination Tool:

76 / 100

Category: Chemistry Ch 7 Class 11

The enthalpy change accompanying the gain of an electron by a neutral gaseous atom to form a negative ion is called:

NTS 2010
Chemistry
Thermochemistry
Elimination Tool:

77 / 100

Category: Chemistry Ch 10 Class 12

Order of the reactivity of halogens during halogenation of alkanes is:

NUMS 2019 Reconduct
Chemistry
Alkyl Halides and Amines
Elimination Tool:

78 / 100

Category: Chemistry Ch 5 Class 11

The amount of energy released by absorbing an electron in the valence shell is:

NTS 2013
Chemistry
Atomic Structure
Elimination Tool:

79 / 100

Category: Chemistry Ch 13 Class 12

Lysine is a
amino acid

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Category: Chemistry Ch 8 Class 12

Boiling point of heptane is:

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Category: Chemistry Ch 10 Class 11

On balancing the following chemical equation: K2CrO4, + HCI –> KCI + 2CrCI3 + Cl2 + H2O The co-efficient with HCI will be?

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Category: Chemistry Ch 7 Class 12

Study that deals with hydrocarbons and its derivatives Is known as:

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Category: Chemistry Ch 15 Class 12

The gas which is mainly produced in landfills from the waste is:

UHS 2016
Chemistry
Environmental Chemistry
Elimination Tool:

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Category: Chemistry Ch 10 Class 12

Pick correct pair about the difference between E1 and E2 mechanism of methyl bromide forming an alkene.

NUMS 2019 Cancelled
Chemistry
Alkyl Halides and Amines
Elimination Tool:

85 / 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

86 / 100

Category: Chemistry

Q.121 Ka (Cu(CN)4) which one is correct

87 / 100

Category: Chemistry Ch 3 Class 12

Which of the following is used to make container for nitric acid?

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Category: Chemistry Ch 5 Class 11

Which one of the following is not an isotope of hydrogen:

NUMS 2014
Chemistry
Atomic Structure
Elimination Tool:

89 / 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:

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Category: Chemistry Ch 2 Class 12

Aqueous solution of Na2CO3is:

NTS 2011
Chemistry
s and p Block Elements
Elimination Tool:

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Category: Chemistry Ch 5 Class 11

The charge on one proton is:

NUMS 2019 Reconduct
Chemistry
Atomic Structure
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92 / 100

Category: Chemistry

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

93 / 100

Category: Chemistry Ch 7 Class 12

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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94 / 100

Category: Chemistry Ch 2 Class 12

Oxygen does not react with:

NTS 2015 DUHS and JSMU
Chemistry
s and p Block Elements
Elimination Tool:

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Category: Chemistry Ch 14 Class 12

The melting point of NaCl is very high, 801°C. It is reduced to 600°C by the addition of _______ in Down’s process.

NTS 2018
Chemistry
Macromolecules
Elimination Tool:

96 / 100

Category: Chemistry Ch 12 Class 12

In Cannizzaro’s reaction, Benzyl alcohol is obtained from?

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

97 / 100

Category: Chemistry Ch 9 Class 12

What are the products of destructive distillation of coal?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

98 / 100

Category: Chemistry

Which one is not related to evaporation?

NUMS Mock 1
Chemistry
Thermochemistry
States of Matter
States of Matter – Gases, Liquids and Solids

99 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following was used as one of the earliest antiseptic and disinfectants?

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

100 / 100

Category: Chemistry Ch 8 Class 12

In alkanes all carbon atoms are linked by bond

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