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 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
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2 / 100

Category: Chemistry Ch 3 Class 11

The unit of viscosity is:

NTS 2012
Chemistry
States of Matter – Gases, Liquids and Solids
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3 / 100

Category: Chemistry Ch 8 Class 11

The following changes to the system at equilibrium have no effect on Kc except:

NUMS 2017
Chemistry
Chemical Equilibrium
Elimination Tool:

4 / 100

Category: Chemistry Ch 15 Class 12

The crude petroleum is separated in fraction by:

PMC Practice 4
Chemistry
Industrial Chemistry
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5 / 100

Category: Chemistry Ch 11 Class 12

How are carboxylic acids formed from alcohol?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
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6 / 100

Category: Chemistry Ch 1 Class 12

A gas that reacts with CaO and not with NaHCO3 is:

NTS 2017
Chemistry
Periodicity in Elements
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7 / 100

Category: Chemistry Ch 6 Class 11

Which theory deals with hybridization of orbitals?

8 / 100

Category: Chemistry

Alkenes undergo:

NUMS Mock 2
Chemistry
Hydrocarbons

9 / 100

Category: Chemistry Ch 8 Class 12

The general formula of Methane Dichloride is:

10 / 100

Category: Chemistry Ch 1 Class 11

Which of the following has six isotopes?

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

11 / 100

Category: Chemistry Ch 2 Class 12

Magnesiums keep on burning in:

NUMS 2014
Chemistry
s and p Block Elements
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12 / 100

Category: Chemistry Ch 11 Class 11

For a single step reaction A ->B + 2C, the rate law is:

NUMS 2017
Chemistry
Reaction Kinetics
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13 / 100

Category: Chemistry Ch 5 Class 12

Which of the following is a component of TEAR GAS:

14 / 100

Category: Chemistry Ch 11 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:

15 / 100

Category: Chemistry Ch 5 Class 11

The relationship between quantum number n and l is:

PMC 2020
Chemistry
Atomic Structure
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16 / 100

Category: Chemistry Ch 5 Class 11

If uncertainty in the position of an electron is zero the uncertainty in its Momentum is?

NTS 2015 DUHS and JSMU
Chemistry
Atomic Structure
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17 / 100

Category: Chemistry Ch 1 Class 12

The binding energy of transition metal increases upto group:

NUMS 2020
Chemistry
Periodicity in Elements
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18 / 100

Category: Chemistry

The shape of CO2 molecule is similar to:

NUMS Mock 2
Chemistry
Chemical Bonding

19 / 100

Category: Chemistry Ch 7 Class 11

Value of heat capacity of water is

20 / 100

Category: Chemistry Ch 13 Class 12

Chemical formula of Malonic acid:

21 / 100

Category: Chemistry Ch 6 Class 12

Acidified K2Cr2O7 is also called:

22 / 100

Category: Chemistry Ch 1 Class 11

Mass of a neutron in amu is?

23 / 100

Category: Chemistry Ch 4 Class 12

Which is the correct electronic configuration of Chromium (24Cr)?

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

24 / 100

Category: Chemistry Ch 5 Class 11

) The velocity of electron in outermost shell Is?

25 / 100

Category: Chemistry Ch 4 Class 12

Which transition metal is used the most in industries?

PMC 2021 Tested
Chemistry
d and f Block Elements
Elimination Tool:

26 / 100

Category: Chemistry Ch 1 Class 12

Which of the following has the least electron affinity value?

NUMS 2015
Chemistry
Periodicity in Elements
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27 / 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
Elimination Tool:

28 / 100

Category: Chemistry

Which of the following shows the Planck’s quantum theory?

NUMS Mock 3
Chemistry
Atomic Structure

29 / 100

Category: Chemistry Ch 12 Class 12

Why is water added after the reduction process of aldehyde and ketone with LiAlH4?

NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
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30 / 100

Category: Chemistry Ch 1 Class 11

Limiting reactant controls the amount of _.

PMC Practice 27
Chemistry
Introduction to Fundamental Concepts of Chemistry
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31 / 100

Category: Chemistry

Q.25 In a pressure cooker, boiling point of water is_

32 / 100

Category: Chemistry Ch 1 Class 11

The total number of neutrons in 5g of H2O are:

1 NA = 6.023 x 1023

PMC Practice 18
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

33 / 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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34 / 100

Category: Chemistry Ch 11 Class 12

Methylated spirit Is % methanol and % ethanol:

35 / 100

Category: Chemistry Ch 12 Class 12

Methyl ketones can be characterized by performing:

NUMS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:

36 / 100

Category: Chemistry Ch 4 Class 11

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

37 / 100

Category: Chemistry

Q.145 Activator of phosphatase enzyme

38 / 100

Category: Chemistry Ch 6 Class 11

Which of the following hybrid orbitals has maximum “s” character?

PMC 2020
Chemistry
Chemical Bonding
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39 / 100

Category: Chemistry Ch 14 Class 12

How many types of polymerization reactions are there?

PMC 2021 Tested
Chemistry
Macromolecules
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40 / 100

Category: Chemistry Ch 1 Class 11

Different kinds of atoms of the same element are called isotope having different __________but same ___________ properties.

PMC Practice 1
Chemistry
Introduction to Fundamental Concepts of Chemistry
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41 / 100

Category: Chemistry Ch 5 Class 11

The amount of energy associated with quantum of radiation is directly proportional to:

NUMS 2020
Chemistry
Atomic Structure
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42 / 100

Category: Chemistry Ch 4 Class 12

H2SO4 is used in industries of?

43 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is secondary pollutant?

NUMS 2019 Reconduct
Chemistry
Environmental Chemistry
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44 / 100

Category: Chemistry Ch 2 Class 11

The empirical formula of Glucose C6H12O6 is:

PMC 2020
Chemistry
Stoichiometry
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45 / 100

Category: Chemistry

Which is the correct electronic configuration of Chromium (24Cr)?

NUMS Mock 2
Chemistry
d and f Block Elements

46 / 100

Category: Chemistry Ch 1 Class 12

In Contact Process arsenic impurities act as poison for:

NUMS 2019 Reconduct
Chemistry
Periodicity in Elements
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47 / 100

Category: Chemistry Ch 1 Class 11

How many significant figures are there in 0.4793?

NTS 2018
Chemistry
Introduction to Fundamental Concepts of Chemistry
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48 / 100

Category: Chemistry Ch 15 Class 12

What is the nature of “hydrated tricalcium aluminate” (3 Ca. Al203. 6 H20) in the setting of cement?

49 / 100

Category: Chemistry Ch 10 Class 12

Which of the following has the strongest bond?

NUMS 2019 Cancelled
Chemistry
Alkyl Halides and Amines
Elimination Tool:

50 / 100

Category: Chemistry Ch 8 Class 11

If the value of Kc is large than the ratio (products)/(reactants), the reaction:

51 / 100

Category: Chemistry Ch 7 Class 12

IUPAC name of this is (CH3)2 – CH – CH (C2H5) – C(CH3)3

NTS 2016 DUHS & JSMU
Chemistry
Fundamental Principles of Organic Chemistry
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52 / 100

Category: Chemistry Ch 9 Class 11

For colligative properties, the solution should be:

53 / 100

Category: Chemistry Ch 4 Class 11

The densities of liquids are much ________ than gases but ____ to solids.

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

54 / 100

Category: Chemistry

Transition Elements usually show:

NUMS Mock 2
Chemistry
d and f Block Elements

55 / 100

Category: Chemistry Ch 2 Class 12

Which of the following do not occur in Free State?

56 / 100

Category: Chemistry Ch 7 Class 11

Some substances lack definite heats of fusion. These substances are:

NUMS 2020
Chemistry
Thermochemistry
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57 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is not soluble In alcohol?

58 / 100

Category: Chemistry Ch 5 Class 11

“In an atom no two electrons can have the some set of four Quantum numbers” is stated by:

NTS 2013
Chemistry
Atomic Structure
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59 / 100

Category: Chemistry Ch 1 Class 11

The atomic mass, molecular mass, ionic mass or formula mass of a substance expressed in grams is called:

PMC 2021 Tested
Chemistry
Introduction to Fundamental Concepts of Chemistry
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60 / 100

Category: Chemistry Ch 11 Class 11

The rate of a reaction in general can be increased by all the following factors except:

NUMS 2015
Chemistry
Reaction Kinetics
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61 / 100

Category: Chemistry Ch 6 Class 12

Number of unpaired electrons in ferrous ion is:

62 / 100

Category: Chemistry Ch 3 Class 11

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

63 / 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

64 / 100

Category: Chemistry Ch 8 Class 12

Boiling point of heptane is:

65 / 100

Category: Chemistry Ch 7 Class 11

Which of the following has the maximum specific heat?

66 / 100

Category: Chemistry

Q.91 The half-ire of Uranium i

67 / 100

Category: Chemistry Ch 9 Class 11

As the number of solute particles increases, the freezing point of the solution:

UHS 2012
Chemistry
Solution and Colloids
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68 / 100

Category: Chemistry Ch 12 Class 12

A student mixed ethyl alcohol with a small amount of sodium dichromate and added it to the hot solution of dilute sulphuric acid. A vigorous reaction took place. He distilled the product formed immediately. What was the product?

PreMedPK MDCAT Mock 3
Chemistry
Aldehydes and Ketones
Elimination Tool:

69 / 100

Category: Chemistry Ch 12 Class 12

Which one of the following is used in making lozenges?

70 / 100

Category: Chemistry Ch 1 Class 11

_______ is a macromolecule found in blood.

PMC Practice 23
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

71 / 100

Category: Chemistry Ch 7 Class 11

Cl + e —-> Cl-

ΔH = -348kJ/mol

The value -348KJ/mol in this case will be:

NTS 2012
Chemistry
Thermochemistry
Elimination Tool:

72 / 100

Category: Chemistry Ch 5 Class 11

When alpha particles are bombarded on beryllium

73 / 100

Category: Chemistry Ch 7 Class 11

Born Haber cycle is used to determine:

PMC 2020
Chemistry
Thermochemistry
Elimination Tool:

74 / 100

Category: Chemistry Ch 7 Class 11

For a chemical reaction A -> B, the threshold energy of the reaction is 37 kJ/mole. The average internal energy of A is 12 kJ/Mole. What will be the activation energy of A?

NTS 2016 SMBBMC
Chemistry
Thermochemistry
Elimination Tool:

75 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is chrome yellow’s pigment?

NTS 2015 SMBBMC
Chemistry
s and p Block Elements
Elimination Tool:

76 / 100

Category: Chemistry Ch 4 Class 11

Vapor pressure is measured by calculating the difference in liquid pressure and?

PMC Practice 2
Chemistry
States of Matter – Gases, Liquids and Solids
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77 / 100

Category: Chemistry Ch 2 Class 11

Change in Pressure will only affect the substances which are in:

PMC Practice 4
Chemistry
Experimental Techniques in Chemistry
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78 / 100

Category: Chemistry Ch 14 Class 12

All are dehydrating agents for alcohols to produce alkene except:

NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
Elimination Tool:

79 / 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
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80 / 100

Category: Chemistry

Q.92 Change in Pressure will only affect fhe.substances which are in

81 / 100

Category: Chemistry Ch 15 Class 12

In the atmosphere, CO2is about?

NUMS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

82 / 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:

83 / 100

Category: Chemistry Ch 13 Class 12

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

84 / 100

Category: Chemistry

 

Q.158 Reduction of alkyl halides in the presence of Zn and mineral acid Produces______________ ?

85 / 100

Category: Chemistry Ch 3 Class 11

At the transition temperature of a crystalline solid, the substance exists:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
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86 / 100

Category: Chemistry

Q.85 Along period of periodic table, shielding effect

87 / 100

Category: Chemistry

The decreasing order of second ionization energy of K, Ca, Ba is:

NUMS Mock 1
Chemistry
Chemical Bonding

88 / 100

Category: Chemistry Ch 3 Class 11

When Gypsum is heated to about 100° C, it losses some water of crystallization and becomes:

NTS 2011
Chemistry
States of Matter – Gases, Liquids and Solids
s and p Block Elements
Elimination Tool:

89 / 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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90 / 100

Category: Chemistry Ch 2 Class 12

Which of the following oxides is most acidic oxide?

NUMS 2019 Reconduct
Chemistry
s and p Block Elements
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91 / 100

Category: Chemistry Ch 1 Class 12

Number of elements in 6th period is:

92 / 100

Category: Chemistry Ch 9 Class 11

The aqueous solution of which of the following electrolyte will conduct electric current to large extent:

ETEA 2018
Chemistry
Solution and Colloids
Elimination Tool:

93 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following is NOT an advantage of synthetic fiber?

NTS 2016 SMBBMC
Chemistry
Environmental Chemistry
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94 / 100

Category: Chemistry Ch 15 Class 12

Identify the pair of rnicronutrients:

95 / 100

Category: Chemistry Ch 13 Class 12

Solubility of carboxylic acids ______?

PMC Sample 1
Chemistry
Carboxylic Acids and its Derivatives
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96 / 100

Category: Chemistry Ch 3 Class 12

) Aluminium is agent?

97 / 100

Category: Chemistry Ch 8 Class 12

Generic formula of cycloalkane is:

PMC 2020
Chemistry
Hydrocarbons
Elimination Tool:

98 / 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

99 / 100

Category: Chemistry Ch 7 Class 12

An essential condition for the Optical Activity of an organic compound is:

NUMS 2015
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

100 / 100

Category: Chemistry

Q.93 The ionizatior energy of group _____________shows abnormal trend

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