Chemistry Practice Tests 4




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 4

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1 / 100

Category: Chemistry Ch 11 Class 11

The rate of reaction is equal to the specific rate constant, when:

2 / 100

Category: Chemistry Ch 3 Class 12

Which one of the following ions exhibits d-d transition and paramagnetism as well?

NTS 2014
Chemistry
d and f Block Elements
Elimination Tool:

3 / 100

Category: Chemistry Ch 14 Class 12

Teflon is name of:

4 / 100

Category: Chemistry

The substance which conducts electricity by the movement of ions:

NUMS Mock 3
Chemistry
Chemical Bonding

5 / 100

Category: Chemistry Ch 13 Class 12

Fatty Acids are:

6 / 100

Category: Chemistry Ch 9 Class 11

Lowering of vapor pressure Is directly proportional to: a)

7 / 100

Category: Chemistry

Which of the following substances exhibits hydrogen bonding?

NUMS Mock 4
Chemistry
Chemical Bonding

8 / 100

Category: Chemistry Ch 4 Class 12

Which one of the following elements has six valence electrons?

9 / 100

Category: Chemistry Ch 2 Class 12

The nitrides of alkaline earth metals hydrolyse with water to form:

NUMS 2020
Chemistry
s and p Block Elements
Elimination Tool:

10 / 100

Category: Chemistry

Q.101 Strong acid can be involved in a spontaneous reaction which is termed as

11 / 100

Category: Chemistry Ch 12 Class 12

What should be added to methane to produce HCN?

12 / 100

Category: Chemistry

While finding the relative atomic mass, which of the following standard is used to compare the atomic mass of chlorine (35.5 amu)

NUMS Mock 1
Chemistry
Stoichiometry

13 / 100

Category: Chemistry

All of the following react with KMnO4 except

NUMS Mock 2
Chemistry
Hydrocarbons

14 / 100

Category: Chemistry

Q.17 Legumine & collagen protein are present in which type of body tissues:

15 / 100

Category: Chemistry Ch 6 Class 11

The number of bond(s) between carbon and nitrogen atoms in a Nitrile is:

NTS 2018
Chemistry
Chemical Bonding
Elimination Tool:

16 / 100

Category: Chemistry Ch 1 Class 12

Hydrogen resembles the elements of groups:

NTS 2019
Chemistry
Periodicity in Elements
Elimination Tool:

17 / 100

Category: Chemistry Ch 6 Class 11

Which one of the following has the lowest % ionic character?

NTS 2016 DUHS & JSMU
Chemistry
Chemical Bonding
Elimination Tool:

18 / 100

Category: Chemistry Ch 9 Class 12

Which of the following Is formula of Benzyl Alcohol?

19 / 100

Category: Chemistry

Q.91 The half-ire of Uranium i

20 / 100

Category: Chemistry Ch 1 Class 12

Which of the following has the least electron affinity value?

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

21 / 100

Category: Chemistry Ch 4 Class 11

Which statement about liquids is not correct?

22 / 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:

23 / 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?

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
Elimination Tool:

24 / 100

Category: Chemistry Ch 15 Class 12

The increasing number of CFC production for industrial use has been a major contributor to the depletion of ozone molecules in the stratosphere. When CFCs diffuses slowly to the atmosphere in the presence of UV light between 175 nm to 220 nm, the ozone layer decomposes. If 1 mole of CFCl3 (Freon – 110) has been released into the air, how many moles of oxygen is produced from the photodecomposition of ozone?

NUMS 2019 Cancelled
Chemistry
Environmental Chemistry
Elimination Tool:

25 / 100

Category: Chemistry Ch 3 Class 11

How many balloons of capacity 0.25dm3 at 1atm pressure can be filled from a hydrogen gas cylinder of 5dm3 capacity at 10 atm?

NUMS 2015
Chemistry
States of Matter – Gases, Liquids and Solids
States of Matter
Elimination Tool:

26 / 100

Category: Chemistry Ch 13 Class 12

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

NUMS 2019 Cancelled
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

27 / 100

Category: Chemistry Ch 9 Class 12

In which of the following cases are the benzene rings isolated?

NUMS 2015
Chemistry
Hydrocarbons
Elimination Tool:

28 / 100

Category: Chemistry Ch 5 Class 11

Which quantum number decides energy of orbitals?

29 / 100

Category: Chemistry Ch 12 Class 12

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

PreMedPK MDCAT Mock 2
Chemistry
Aldehydes and Ketones
Elimination Tool:

30 / 100

Category: Chemistry Ch 15 Class 12

What is used in cement manufacture?

31 / 100

Category: Chemistry Ch 9 Class 11

The compound with more than 10% solubility in pure water is:

ETEA 2018
Chemistry
Solution and Colloids
Elimination Tool:

32 / 100

Category: Chemistry Ch 11 Class 12

phenol, and ethers are the derivatives of?

33 / 100

Category: Chemistry Ch 6 Class 12

What is NOT true about K2Cr2O7?

34 / 100

Category: Chemistry

Q.122 An orbital can accommodate at the most______________electrons

35 / 100

Category: Chemistry

Q.172 Dipole forces has direct relation with the

36 / 100

Category: Chemistry Ch 1 Class 12

Borax exists in nature as:

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

37 / 100

Category: Chemistry Ch 3 Class 12

Boric acid is used in

38 / 100

Category: Chemistry

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

39 / 100

Category: Chemistry Ch 10 Class 12

Which alkyl halide has the lowest reactivity for a particular alkyl group?

NTS 2018
Chemistry
Alkyl Halides and Amines
Elimination Tool:

40 / 100

Category: Chemistry Ch 9 Class 11

The number of moles of solute dissolved per dm) of the solution is called

41 / 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:

42 / 100

Category: Chemistry

Sodium Benzoate on reacting with soda lime forms:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

43 / 100

Category: Chemistry Ch 8 Class 11

If Kc < 1, then the reaction proceeds:

44 / 100

Category: Chemistry Ch 8 Class 11

The change in concentration of reactant or product per unit time is called:

NTS 2016 DUHS & JSMU
Chemistry
Chemical Equilibrium
Elimination Tool:

45 / 100

Category: Chemistry

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

46 / 100

Category: Chemistry Ch 14 Class 12

Formula of fructose is:

47 / 100

Category: Chemistry Ch 12 Class 12

Carbonyl group undergoes:

NUMS 2019 Reconduct
Chemistry
Aldehydes and Ketones
Elimination Tool:

48 / 100

Category: Chemistry Ch 10 Class 11

Which one has valency other than one?

49 / 100

Category: Chemistry Ch 2 Class 12

Which is the paramagnetic oxide of chlorine?

NUMS 2019 Reconduct
Chemistry
s and p Block Elements
Elimination Tool:

50 / 100

Category: Chemistry

When two moles of H2 and one mole of O2 react to form H2O, 484 KJ heat is evolved. What is Δ Hf for one mole of H2O?

NUMS Mock 3
Chemistry
Thermochemistry

51 / 100

Category: Chemistry Ch 10 Class 11

Current in electrolysis is carried through?

PMC Practice 1
Chemistry
Electrochemistry
Elimination Tool:

52 / 100

Category: Chemistry Ch 5 Class 11

The radius of the third Bohr orbit is:

NTS 2016 DUHS & JSMU
Chemistry
Atomic Structure
Elimination Tool:

53 / 100

Category: Chemistry

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

54 / 100

Category: Chemistry Ch 10 Class 12

A compound X (C4H9Br) undergoes the following reactions:

C4H9Br NaOH(aq)/heat > C4H10O Cr2O7(2-), H+(aq)/ heat> C4H8O.

What is X?

NUMS 2018
Chemistry
Alkyl Halides and Amines
Elimination Tool:

55 / 100

Category: Chemistry Ch 8 Class 12

Catenation is a process in which carbon shows the properties of:

NTS 2010
Chemistry
Hydrocarbons
Elimination Tool:

56 / 100

Category: Chemistry Ch 4 Class 11

Vapor pressure depends on

57 / 100

Category: Chemistry Ch 8 Class 11

Buffer capacity depends upon

58 / 100

Category: Chemistry

Q.77 H banding is not present in which of the following_____________?

59 / 100

Category: Chemistry Ch 13 Class 12

Lysine is a
amino acid

60 / 100

Category: Chemistry

Q.143 Which one of the following benzene molecules have?

61 / 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
Elimination Tool:

62 / 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
Elimination Tool:

63 / 100

Category: Chemistry Ch 7 Class 11

Energy for the endothermic reaction is given a ____ value?

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

64 / 100

Category: Chemistry Ch 11 Class 12

The aromatic compound having the functional group “OH” attached to It Is?

65 / 100

Category: Chemistry Ch 9 Class 11

The value of surface tension of isopropyl alcohol is?

NUMS 2017
Chemistry
Solution and Colloids
Elimination Tool:

66 / 100

Category: Chemistry Ch 12 Class 12

IUPAC Name of formaldehyde is

67 / 100

Category: Chemistry Ch 3 Class 11

The unit of viscosity is:

NTS 2012
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

68 / 100

Category: Chemistry Ch 12 Class 12

Why is it necessary to distill aldehyde formed from oxidation of primary alcohol through acidified potassium dichromate (VI) solution or acidified sodium dichromate (VI) solution?

PreMedPK MDCAT Mock 5
Chemistry
Alcohols, Phenols and Ethers
Aldehydes and Ketones
Elimination Tool:

69 / 100

Category: Chemistry Ch 9 Class 11

Percentage of weight of NaCI if 2g NaCI is dissolved in 18g water

70 / 100

Category: Chemistry Ch 7 Class 11

Heat of vaporization of water is kcal/kg

71 / 100

Category: Chemistry Ch 10 Class 12

Which type of alkyl halides gives SN2 mechanism?

NUMS 2019 Reconduct
Chemistry
Alkyl Halides and Amines
Elimination Tool:

72 / 100

Category: Chemistry Ch 3 Class 12

Aluminium is a

73 / 100

Category: Chemistry

Q.97 Due to less polarizability of Fluorine, it boils at ___________C

74 / 100

Category: Chemistry Ch 14 Class 12

How many types of polymers are there based on their natures?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

75 / 100

Category: Chemistry Ch 6 Class 11

Co-ordinate covalent bond Is not formed in which of the following

76 / 100

Category: Chemistry Ch 2 Class 11

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

77 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is unstable?

78 / 100

Category: Chemistry Ch 8 Class 11

Buffer solution is a solution which resists change in?

79 / 100

Category: Chemistry Ch 4 Class 12

Nitrogen has oxides:

80 / 100

Category: Chemistry

Q.136 SN reactions are favored by which of the following reactions?

81 / 100

Category: Chemistry Ch 13 Class 12

Nitriles (RCN), on hydrolysis, in the presence of a mineral acid yield:

UHS 2019
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

82 / 100

Category: Chemistry Ch 1 Class 12

11) Hydrogen has properties similar to:

83 / 100

Category: Chemistry

Le Chatelier Principle is about:

NUMS Mock 1
Chemistry
Chemical Equilibrium

84 / 100

Category: Chemistry Ch 11 Class 11

A certain chemical reaction follows the
following rate law:

Rate =K [A] [B]2 The order of reaction is:

NTS 2011
Chemistry
Reaction Kinetics
Elimination Tool:

85 / 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:

86 / 100

Category: Chemistry Ch 11 Class 11

Sum of all the exponents of the molar concentration of the reactant present in the rate equation is known as:

NTS 2012
Chemistry
Reaction Kinetics
Elimination Tool:

87 / 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:

88 / 100

Category: Chemistry Ch 8 Class 11

By which of the following factors, equilibrium state is attained earlier?

NUMS 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

89 / 100

Category: Chemistry Ch 6 Class 11

In period, moving from left to right

90 / 100

Category: Chemistry

The indicator is a colored compound?

91 / 100

Category: Chemistry Ch 4 Class 11

Which type of movement is shown by the atoms of the solid?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

92 / 100

Category: Chemistry Ch 12 Class 12

In the addition of sodium bisulfite to carbonyl system, which of the following is a nucleophile?

PreMedPK MDCAT Mock 3
Chemistry
Aldehydes and Ketones
Elimination Tool:

93 / 100

Category: Chemistry Ch 13 Class 12

The same carboxylic acid is obtained either by hydrolysis of a nitrite X or by oxidation of alcohol Y. Which pair could be X and Y? X Y

94 / 100

Category: Chemistry Ch 11 Class 12

Higher order alcohols

95 / 100

Category: Chemistry Ch 4 Class 12

The correct electronic configuration of Cr is:

PMC Practice 4
Chemistry
d and f Block Elements
Elimination Tool:

96 / 100

Category: Chemistry Ch 10 Class 12

Which gases are produced when alcohol reacts with thionyl chloride?

PMC Sample 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

97 / 100

Category: Chemistry Ch 4 Class 12

F-block elements are called?

PMC Practice 1
Chemistry
d and f Block Elements
Elimination Tool:

98 / 100

Category: Chemistry Ch 7 Class 12

Which one of them is used as an automobile antifreeze

PMC Sample 1
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

99 / 100

Category: Chemistry Ch 4 Class 11

The rate of diffusion of liquids is ________ than gases.

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

100 / 100

Category: Chemistry Ch 1 Class 11

The relative abundance of isotopes of elements are measured by?

PMC Practice 11
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

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