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 9 Class 12

Acetylene on reacting with ammonium silver nitrate gives.

NUMS 2014
Chemistry
Hydrocarbons
Elimination Tool:

2 / 100

Category: Chemistry

Q.33 Rate constant is denoted by?

3 / 100

Category: Chemistry Ch 6 Class 11

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

4 / 100

Category: Chemistry

The products of decomposition of Mg(NO3)2are:

NUMS Mock 2
Chemistry
Periodicity in Elements

5 / 100

Category: Chemistry

Q.89 Iftwo substituents are present at 1,4 positions then the isomer is called As____________?

6 / 100

Category: Chemistry Ch 9 Class 11

Molal freezing point constant of water is:

UHS 2013
Chemistry
Solution and Colloids
Elimination Tool:

7 / 100

Category: Chemistry

H2 and O2 are diffusing under the same condition how much H2 gas will diffuse?

NUMS Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids

8 / 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
Elimination Tool:

9 / 100

Category: Chemistry Ch 13 Class 12

Cyanohydrins when reacted with mineral acid produces ________?

PMC Sample 2
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

10 / 100

Category: Chemistry Ch 9 Class 11

The value of surface tension of isopropyl alcohol is?

NUMS 2017
Chemistry
Solution and Colloids
Elimination Tool:

11 / 100

Category: Chemistry

The reaction between borohydride

12 / 100

Category: Chemistry Ch 2 Class 11

Silver oxide decomposes when heated to silver and oxygen. If 0.5 moles of lunar caustic is heated up to 450 degrees, giving out Nitrogen dioxide and oxygen leaving silver as metal, what is the mass of the residue?

NTS 2015 SMBBMC
Chemistry
Stoichiometry
Elimination Tool:

13 / 100

Category: Chemistry Ch 5 Class 12

Percentage of Chlorine present In bleaching powder Is:

14 / 100

Category: Chemistry Ch 3 Class 12

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

15 / 100

Category: Chemistry Ch 12 Class 12

Oxidation of alcohol converts it into?

16 / 100

Category: Chemistry Ch 1 Class 11

Solution contains 85.5 g of sucrose (C12H22O11) in 250 cm3. What is its molarity?

UHS 2019
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

17 / 100

Category: Chemistry Ch 6 Class 11

Silicon is found in nature in form of:

NUMS 2014
Chemistry
Chemical Bonding
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18 / 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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19 / 100

Category: Chemistry Ch 11 Class 12

Rectified spirits have a percentage of alcohol.

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
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20 / 100

Category: Chemistry Ch 8 Class 12

Unsaturated Compound containing double bond is:

21 / 100

Category: Chemistry Ch 7 Class 11

The enthalpy change of the reaction

H2(g) + ½ O2 -> H2O (l)

under standard conditions is:

NUMS 2017
Chemistry
Thermochemistry
Elimination Tool:

22 / 100

Category: Chemistry Ch 9 Class 12

Organic compounds in which tetravalency of carbon atom is satisfied are called as ____ ?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

23 / 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
Elimination Tool:

24 / 100

Category: Chemistry Ch 10 Class 11

What is the oxidation state of Mn in K2MnO4?

25 / 100

Category: Chemistry Ch 6 Class 11

which type of hybridization doesn’t exist?

26 / 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:

27 / 100

Category: Chemistry Ch 10 Class 12

The order of reactivities of the following alkyl halides for an SN2 reaction is:

NUMS 2016
Chemistry
Alkyl Halides and Amines
Elimination Tool:

28 / 100

Category: Chemistry Ch 1 Class 11

The break down of molecular ions from natural productsgive important information about?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

29 / 100

Category: Chemistry Ch 4 Class 12

What are interstitial compounds?

PMC Sample 2
Chemistry
d and f Block Elements
Elimination Tool:

30 / 100

Category: Chemistry Ch 2 Class 11

If we take 2.2 grams of CO2, 6.02 x 1021atoms of nitrogen. and 0.03-gram atoms of sulfur, then the molar ratio of C, N, and atoms will be:

NTS 2013
Chemistry
Stoichiometry
Elimination Tool:

31 / 100

Category: Chemistry Ch 12 Class 12

Which of the following reactions is NOT shown by ketones?

NTS 2018
Chemistry
Aldehydes and Ketones
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32 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is the most widely used fertilizer in Pakistan? 

33 / 100

Category: Chemistry Ch 5 Class 12

Which of the following is a result of reaction between Iodine and Oxygen?

34 / 100

Category: Chemistry

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

35 / 100

Category: Chemistry Ch 4 Class 11

Which of the following solids is isotropic?

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

36 / 100

Category: Chemistry Ch 10 Class 12

In general formula of alkyl halide RX, X represents ________

PMC Sample 2
Chemistry
Alkyl Halides and Amines
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37 / 100

Category: Chemistry Ch 11 Class 11

Half-life of iron is? (A=59)

38 / 100

Category: Chemistry Ch 14 Class 12

Formula of fructose is:

39 / 100

Category: Chemistry Ch 2 Class 11

is the process of transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.

40 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is not a macronutrient?

41 / 100

Category: Chemistry Ch 6 Class 11

Which of the following is the highest electronegative element?

42 / 100

Category: Chemistry Ch 3 Class 12

EDTA ion is a ________ ligand.

NTS 2012
Chemistry
d and f Block Elements
Elimination Tool:

43 / 100

Category: Chemistry

Q.95 Wholar first time prepare urea in laboratory in ?

44 / 100

Category: Chemistry

Q.119 Caustic Soda is made by electrolysis of concentrated solution of NaCI in

45 / 100

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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46 / 100

Category: Chemistry Ch 15 Class 12

The suspected liver carcinogen which also has negative reproduction and developmental effect on humans is:

UHS 2011
Chemistry
Environmental Chemistry
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47 / 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:

48 / 100

Category: Chemistry Ch 3 Class 11

Gases behave ideal at

49 / 100

Category: Chemistry Ch 4 Class 12

The chemical name of K2[Zn(OH)4] is:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

50 / 100

Category: Chemistry Ch 16 Class 12

Which one of these Is toxic?

51 / 100

Category: Chemistry Ch 7 Class 12

The type of isomerism existing in a compound of molecular formula C2H6O is:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

52 / 100

Category: Chemistry Ch 16 Class 12

What is the major reason for S02 emissions?

53 / 100

Category: Chemistry Ch 3 Class 11

Which of the following pairs of gases have same rate of diffusion:

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

54 / 100

Category: Chemistry Ch 15 Class 12

What is used in cement manufacture?

55 / 100

Category: Chemistry Ch 5 Class 11

Spectrum of which series is in the visible region?

56 / 100

Category: Chemistry

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

NUMS Mock 3
Chemistry
Thermochemistry

57 / 100

Category: Chemistry Ch 3 Class 12

Transition Elements usually show:

NUMS 2015
Chemistry
d and f Block Elements
Elimination Tool:

58 / 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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59 / 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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60 / 100

Category: Chemistry Ch 6 Class 11

Ionization potential

61 / 100

Category: Chemistry Ch 13 Class 12

) Acetic acid is used in making

62 / 100

Category: Chemistry Ch 4 Class 12

In which of the following the oxidation state of S is the highest

63 / 100

Category: Chemistry

Q.107 I is an example of___________?

64 / 100

Category: Chemistry Ch 3 Class 12

Zinc reacts with dil. H2SO4 to give H2. It also reacts with conc. H2SO4 to form SO2. In these reactions.

NTS 2014
Chemistry
d and f Block Elements
Elimination Tool:

65 / 100

Category: Chemistry Ch 7 Class 12

In a resonance structure of a molecule

NUMS 2014
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

66 / 100

Category: Chemistry Ch 8 Class 11

A very small value of ‘Kc’ for a reaction at equilibrium indicates:

NUMS 2018
Chemistry
Chemical Equilibrium
Elimination Tool:

67 / 100

Category: Chemistry

Q.102 In electrochemical series reduction potential relates to only

68 / 100

Category: Chemistry Ch 1 Class 11

The smallest number of molecules are present in?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

69 / 100

Category: Chemistry Ch 7 Class 11

One Calorie is equivalent to:

NTS 2019
Chemistry
Thermochemistry
Elimination Tool:

70 / 100

Category: Chemistry

Q.120 Which of the following has six isotopes

71 / 100

Category: Chemistry

Q.148 Acetaldehyde undergoes polymerization with conc.HasO and form?

72 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is unstable?

73 / 100

Category: Chemistry Ch 5 Class 11

If an election jumps from 6th orbit to 2nd orbit then decrease in radius will be?

74 / 100

Category: Chemistry Ch 9 Class 12

Alkenes undergo:

UHS 2019
Chemistry
Hydrocarbons
Elimination Tool:

75 / 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:

76 / 100

Category: Chemistry Ch 5 Class 12

Which of the following is the formula of Potassium permanganate?

77 / 100

Category: Chemistry

Q.117 After the hydrolysis of ester the change in concentration of acid at different intervals is calculated by

78 / 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:

79 / 100

Category: Chemistry Ch 2 Class 11

22.4 dm3 of volume of each H2 and O2 are sparked to produce water vapours (considered as ideal gas) on completion of reaction. What is the decrease in the volume of the vessel?

NTS 2016 SMBBMC
Chemistry
Stoichiometry
Elimination Tool:

80 / 100

Category: Chemistry Ch 3 Class 12

Electronic configuration of chromium (Proton number 24) is:

PMC 2020
Chemistry
d and f Block Elements
Elimination Tool:

81 / 100

Category: Chemistry Ch 6 Class 11

Which noble gas has highest ionization energy?

82 / 100

Category: Chemistry Ch 1 Class 12

Number of elements in 6th period is:

83 / 100

Category: Chemistry Ch 10 Class 11

Stronger the oxidizing agent, higher is the:

NUMS 2019 Reconduct
Chemistry
Electrochemistry
Elimination Tool:

84 / 100

Category: Chemistry Ch 10 Class 11

The oxidation state of “S’ in the (S2O3)-2 is:

PMC 2020
Chemistry
Electrochemistry
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 Ch 7 Class 12

Isomerism is:

87 / 100

Category: Chemistry

Which of the following atoms would be diamagnetic?

 

88 / 100

Category: Chemistry

Which derivative of benzene shows maximum reactivity in electrophilic substitution reactions?

NUMS Mock 1
Chemistry
Hydrocarbons

89 / 100

Category: Chemistry

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

NUMS Mock 2
Chemistry
Reaction Kinetics

90 / 100

Category: Chemistry

Q.129 The biochemical process used in the synthesis of alcohol in the presence of yeast is called as____________________?.

91 / 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:

92 / 100

Category: Chemistry Ch 9 Class 12

Which of the following is NOT explained by Kekule structure of benzene?

PMC Sample 2
Chemistry
Hydrocarbons
Elimination Tool:

93 / 100

Category: Chemistry Ch 15 Class 12

The essential property of a fertilizer is that is should be:

UHS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

94 / 100

Category: Chemistry

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

95 / 100

Category: Chemistry Ch 14 Class 12

Chlorine is manufactured commercially by the electrolysis of aqueous sodium chloride (brine). Which other products are made in this process?

NTS 2010
Chemistry
Macromolecules
Elimination Tool:

96 / 100

Category: Chemistry Ch 7 Class 12

Which of the following compounds has the empirical formula, (CH2O) and reacts with sodium hydroxide?

NUMS 2019 Cancelled
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

97 / 100

Category: Chemistry Ch 16 Class 12

Ozone absorbs

98 / 100

Category: Chemistry Ch 8 Class 12

What Is Lindlar Catalyst?

99 / 100

Category: Chemistry

Which one of the following molecules has sp3 hybridization?

NUMS Mock 2
Chemistry
Chemical Bonding

100 / 100

Category: Chemistry

The following sketch shows the variation in a physical property of third period elements against their atomic numbers:

What physical property is plotted in this sketch?

NUMS Mock 2
Chemistry
Periodicity in Elements

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