Chemistry Practice Tests 1





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 1

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1 / 100

Category: Chemistry

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

2 / 100

Category: Chemistry Ch 6 Class 11

The dipole moments of the given molecules (BF3, NF3, NH3) are such that:

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Chemistry
Chemical Bonding
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3 / 100

Category: Chemistry

Which of the following is locating agent?

NUMS Mock 1
Chemistry
Analytical Chemistry

4 / 100

Category: Chemistry Ch 1 Class 12

The false statement about lithium is:

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Periodicity in Elements
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5 / 100

Category: Chemistry Ch 15 Class 12

Ozone concentration is measured in:

UHS 2016
Chemistry
Environmental Chemistry
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6 / 100

Category: Chemistry Ch 6 Class 11

Acetone and Chloroform are soluble into each other due to:

NUMS 2015
Chemistry
Chemical Bonding
States of Matter
States of Matter – Gases, Liquids and Solids
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7 / 100

Category: Chemistry Ch 5 Class 12

) Which halogen is present in Teflon?

8 / 100

Category: Chemistry Ch 8 Class 12

Benzene in the presence of AlCl3 produces acetophenone when reacts with:

PreMedPK MDCAT Mock 4
Chemistry
Hydrocarbons
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9 / 100

Category: Chemistry Ch 14 Class 12

A catalyst catalyzes reaction by:

10 / 100

Category: Chemistry Ch 1 Class 12

Which of the following catalysts is used in the decomposition of laughing gas N2O at 1000 K?

2N2O 2N2 + O2

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
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11 / 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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12 / 100

Category: Chemistry

Q.112 If uncertainty in momentum of electron is zero, the uncertainty in its position would be?

13 / 100

Category: Chemistry Ch 1 Class 12

The periodic table consists of:

NUMS 2014
Chemistry
Periodicity in Elements
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14 / 100

Category: Chemistry Ch 9 Class 11

The osmotic pressure of equimolar solutions of BaCl2, NaCl and sucrose will be in the order:

NUMS 2016
Chemistry
Solution and Colloids
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15 / 100

Category: Chemistry

The process of depositing a thin layer of expensive metals on ordinary or expensive metals is called:

NUMS Mock 2
Chemistry
Electrochemistry

16 / 100

Category: Chemistry Ch 10 Class 11

Oxidation number of Cr in K2Cr2O2 & K2Cr2O4 is:

17 / 100

Category: Chemistry Ch 10 Class 11

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

18 / 100

Category: Chemistry Ch 1 Class 12

ZnH2 is an example of?

NTS 2015 SMBBMC
Chemistry
Periodicity in Elements
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19 / 100

Category: Chemistry Ch 7 Class 11

If pressure and volume of a gas are variable while temperature remains constant, this belongs to

PMC Sample 2
Chemistry
Thermochemistry
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20 / 100

Category: Chemistry Ch 8 Class 11

In a reversible reaction, catalyst lowers the action energy of the:

NUMS 2020
Chemistry
Reaction Kinetics
Chemical Equilibrium
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21 / 100

Category: Chemistry

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

NUMS Mock 4
Chemistry
Atomic Structure

22 / 100

Category: Chemistry

Q.84 In BeCl2 the covalent bond is formed due to overlap if

23 / 100

Category: Chemistry Ch 1 Class 12

The chemical formula of chromyl chloride gas is?

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Chemistry
Periodicity in Elements
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24 / 100

Category: Chemistry Ch 15 Class 12

Which of the pair of gases is not a greenhouse gas?

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Chemistry
Environmental Chemistry
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25 / 100

Category: Chemistry Ch 15 Class 12

The unit ___ is commonly used by meteorologists

PMC Sample 3
Chemistry
Environmental Chemistry
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26 / 100

Category: Chemistry

Q.36 How will the conditions be changed to prevent the volume of the given gas from expanding when its mass is increased

27 / 100

Category: Chemistry Ch 12 Class 12

In which of the following reagent Cupric citrate complex is formed?

PreMedPK MDCAT Mock 5
Chemistry
Aldehydes and Ketones
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28 / 100

Category: Chemistry Ch 9 Class 12

What happens when one mole of ethane is mixed in the dark at room temperature with six moles of chlorine?

NTS 2017
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Hydrocarbons
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29 / 100

Category: Chemistry Ch 8 Class 12

1,4-dimethyl benzene is called as ______.

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
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30 / 100

Category: Chemistry Ch 1 Class 12

Ionization energy decreases down the group, from top to bottom, due to:

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Periodicity in Elements
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31 / 100

Category: Chemistry Ch 3 Class 11

The internal energy of an ideal gas depends upon its:

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States of Matter – Gases, Liquids and Solids
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32 / 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
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33 / 100

Category: Chemistry Ch 10 Class 11

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

NTS 2012
Chemistry
Electrochemistry
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34 / 100

Category: Chemistry Ch 9 Class 12

Alkenes undergo:

UHS 2019
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Hydrocarbons
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35 / 100

Category: Chemistry Ch 5 Class 11

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

NTS 2013
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Atomic Structure
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36 / 100

Category: Chemistry Ch 8 Class 12

Electrophile in sulphonation of benzene is:

PMC 2020
Chemistry
Hydrocarbons
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37 / 100

Category: Chemistry

A system at equilibrium can be disturbed by:

NUMS Mock 4
Chemistry
Chemical Equilibrium

38 / 100

Category: Chemistry Ch 10 Class 11

The hydrogen gas bubbling into one molar solution of HCl has a pressure of

PMC Sample 3
Chemistry
Electrochemistry
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39 / 100

Category: Chemistry Ch 11 Class 12

Which of the following are not usually named using IUPAC system?

40 / 100

Category: Chemistry Ch 3 Class 12

Transition Elements usually show:

NUMS 2015
Chemistry
d and f Block Elements
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41 / 100

Category: Chemistry Ch 2 Class 11

While calculating vapor pressure of a liquid in manometer, the column of mercury facing the vapors of a liquid is _____ due to pressure on surface of liquid in flask.

PMC Practice 1
Chemistry
Experimental Techniques in Chemistry
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42 / 100

Category: Chemistry Ch 10 Class 11

Which of the following statements about the reaction given below are correct.

IO3-(aq) + 2I-(aq) + 6H+(aq) + 6Cl-(aq) -> 3ICl2-(aq) + 3H2O(l)

NUMS 2018
Chemistry
Electrochemistry
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43 / 100

Category: Chemistry Ch 3 Class 12

Which of the following elements of Group 3 is non-metallic in character?

44 / 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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45 / 100

Category: Chemistry Ch 8 Class 11

If Kc < 1, then the reaction proceeds:

46 / 100

Category: Chemistry Ch 9 Class 12

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

47 / 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
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48 / 100

Category: Chemistry Ch 6 Class 11

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

49 / 100

Category: Chemistry

Both ionic and covalent bonds are present in:

NUMS Mock 3
Chemistry
Chemical Bonding

50 / 100

Category: Chemistry Ch 11 Class 12

Treatment of ethene with cold sulphuric acid, followed by reaction with boiling water, yields:

UHS 2019
Chemistry
Alcohols, Phenols and Ethers
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51 / 100

Category: Chemistry Ch 7 Class 11

For a reaction given below

C(s) + O2 (g) -> CO2 (g) + 394 kJ / mol

The enthalpy of reaction is

NTS 2016 SMBBMC
Chemistry
Thermochemistry
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52 / 100

Category: Chemistry Ch 1 Class 12

Which of following pair has highest conductivity?

53 / 100

Category: Chemistry Ch 4 Class 12

Which of these is not an isotope of Phosphorus?

54 / 100

Category: Chemistry Ch 5 Class 12

Which of the following is the highest oxidizing agent?

55 / 100

Category: Chemistry Ch 10 Class 11

Decrease in Oxidation number is

PMC Sample 2
Chemistry
Electrochemistry
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56 / 100

Category: Chemistry

In this reaction NH4* + H2O -> H3O*, the conjugate base of H3O+ ion is:

NUMS Mock 3
Chemistry
Chemical Equilibrium

57 / 100

Category: Chemistry Ch 7 Class 11

Through what phenomenons does heat flow?

PMC Sample 2
Chemistry
Thermochemistry
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58 / 100

Category: Chemistry Ch 3 Class 11

Statement of Graham’s Law is

59 / 100

Category: Chemistry Ch 14 Class 12

Ethylene is a monomer of polyethylene that is widely used as raw material for manufacturing plastics. It can be polymerized into two different classes: HDPE and LDPE. The following choices are the differences of HDPE and LDPE except:

NUMS 2019 Cancelled
Chemistry
Macromolecules
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60 / 100

Category: Chemistry Ch 15 Class 12

The biggest source of acid rain is the oxide of

UHS 2015
Chemistry
Environmental Chemistry
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61 / 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
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62 / 100

Category: Chemistry Ch 13 Class 12

Chemical formula of MaIonic Acid is?

63 / 100

Category: Chemistry

Q.88 Acetaldehyde in the presence of Con.H2SO4 undergoes

64 / 100

Category: Chemistry

If we balanced the following reaction , what is the net ionic charge on the right side of the equation?

__H+ +___ MnO4- + ____ Fe2+ →___ Mn2+ + ___ Fe3+ + ___ H2O

NUMS Mock 4
Chemistry
Electrochemistry

65 / 100

Category: Chemistry

Q.114 On which of the following factors Hydration Energy depend?

66 / 100

Category: Chemistry

Q.9 The unit of electronegative is

67 / 100

Category: Chemistry Ch 5 Class 12

Percentage of Chlorine present In bleaching powder Is:

68 / 100

Category: Chemistry Ch 8 Class 12

Which among the following gives ppt. with terminal alkynyl hydrogen?

PreMedPK MDCAT Mock 4
Hydrocarbons
Elimination Tool:

69 / 100

Category: Chemistry

Q.130 First member of alkynes is called as______________-

70 / 100

Category: Chemistry Ch 14 Class 12

The alloy Duralumin is composed of ______ of Al.

NTS 2018
Chemistry
Macromolecules
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71 / 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
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72 / 100

Category: Chemistry Ch 2 Class 12

Magnesium reacts with nitrogen to form:

PMC 2020
Chemistry
s and p Block Elements
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73 / 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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74 / 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
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75 / 100

Category: Chemistry Ch 11 Class 11

In a zero-order reaction, the rate is independent of:

NTS 2019
Chemistry
Reaction Kinetics
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76 / 100

Category: Chemistry Ch 11 Class 12

Which of the following alcohol does not get oxidized when it reacts with K₂Cr₂O₇/H₂SO₄?

PMC Sample 2
Chemistry
Alcohols, Phenols and Ethers
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77 / 100

Category: Chemistry Ch 6 Class 11

The raindrop acquires a spherical shape and ink spread over blotting paper due to:

NTS 2010
Chemistry
Chemical Bonding
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78 / 100

Category: Chemistry Ch 15 Class 12

The pH of acid rain is

UHS 2014
Chemistry
Environmental Chemistry
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79 / 100

Category: Chemistry Ch 13 Class 12

Strongest acid among the following is:

NUMS 2014
Chemistry
Carboxylic Acids and its Derivatives
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80 / 100

Category: Chemistry Ch 5 Class 12

The halogens are known as:

81 / 100

Category: Chemistry Ch 6 Class 11

Which compound shows maximum hydrogen bonding with water?

NUMS 2015
Chemistry
Chemical Bonding
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82 / 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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83 / 100

Category: Chemistry Ch 14 Class 12

Polymer having a characteristics odour and mostly used as an adhesive material is

84 / 100

Category: Chemistry Ch 10 Class 12

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

85 / 100

Category: Chemistry Ch 10 Class 11

What is the oxidation state of Mn in K2MnO4?

86 / 100

Category: Chemistry Ch 14 Class 12

Graphite has a structural similarity with:

PMC Practice 2
Chemistry
Macromolecules
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87 / 100

Category: Chemistry Ch 1 Class 12

Arrange the following according to increasing ionization energy: Li, Be, Na, Mg

NUMS 2019 Cancelled
Chemistry
Periodicity in Elements
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88 / 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
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89 / 100

Category: Chemistry Ch 3 Class 11

Upon which factor is vapour pressure not dependent:

NUMS 2020
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States of Matter – Gases, Liquids and Solids
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90 / 100

Category: Chemistry Ch 9 Class 12

Boiling point of benzene is:

91 / 100

Category: Chemistry Ch 11 Class 11

A catalyst:

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Chemistry
Reaction Kinetics
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92 / 100

Category: Chemistry

Ketones can be made by oxidation of:

NUMS Mock 2
Chemistry
Aldehydes and Ketones

93 / 100

Category: Chemistry Ch 15 Class 12

In Paper industry, sodium sulphite is buffered with

94 / 100

Category: Chemistry

Q.103 In phenol, the hydroxyl group is attached to

95 / 100

Category: Chemistry Ch 13 Class 12

Which one is the carbonyl protecting group?

96 / 100

Category: Chemistry

Q.142 In the production of wrought iron Mg Si and P are removed in the form of

97 / 100

Category: Chemistry

Q.92 The correct statement about 2px and 2pz is

98 / 100

Category: Chemistry Ch 12 Class 12

A diabetic person’s exhaled breath contains propanone. A student tries to test the diabetes by asking the person to bubble the reagent with his exhaled breath. Which of the following reagents would give a positive result?

NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
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99 / 100

Category: Chemistry Ch 11 Class 12

Phenol reacts with CH3COCl to give:

NUMS 2019 Reconduct
Chemistry
Alcohols, Phenols and Ethers
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100 / 100

Category: Chemistry Ch 5 Class 11

Shape of the orbital occupied by an electron is defined by:

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Chemistry
Atomic Structure
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2 responses to “Chemistry Practice Tests 1”

  1. Attention Sir…!
    Q-177 : Highest electronegativity of Flourine is 4 but in answer 2.6 is given correct…! ?
    Need your opinion…!
    Thank You ..!

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