Chemistry Practice Tests 5




Chemistry Practice Test 5

Chemistry Practice Test 5 is designed to help students strengthen their understanding of key chemistry concepts, formulas, and reactions for competitive entry tests like MDCAT, NUMS, AKU, UET, ECAT, NTS, as well as FSC Board Exams. This test covers topics from thermodynamics, chemical equilibrium, coordination compounds, and practical applications, helping students improve accuracy and problem-solving skills.

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Chemistry Practice Test 5

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1 / 100

Category: Chemistry Ch 13 Class 12

What is the product of both fermentation reactions and fractional distillation:

NTS 2010
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

2 / 100

Category: Chemistry Ch 10 Class 12

RMgX is an organometallic compound, generally known as:

NTS 2012
Chemistry
Alkyl Halides and Amines
Elimination Tool:

3 / 100

Category: Chemistry

Which of the following will not undergo aldol condensation?

NUMS Mock 2
Chemistry
Aldehydes and Ketones

4 / 100

Category: Chemistry Ch 8 Class 12

Which one of these is/are gasses?

5 / 100

Category: Chemistry Ch 9 Class 11

For colligative properties, the solution should be:

6 / 100

Category: Chemistry

Q.103 Left-handed helix in proteins secondary structure is called as

7 / 100

Category: Chemistry Ch 4 Class 11

All the collisions between the particles of gases are elastic in nature. What is meant by “Elastic Collisions”?

UHS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

8 / 100

Category: Chemistry Ch 13 Class 12

What is correct order of acidic strength?

9 / 100

Category: Chemistry Ch 3 Class 12

If a person is injected by shot of a gun and all the bullets are not removed from his body, it may cause poisoning by:

NUMS 2017
Chemistry
d and f Block Elements
Elimination Tool:

10 / 100

Category: Chemistry Ch 15 Class 12

In the atmosphere, CO2 is about:

FMDC 2018
Chemistry
Environmental Chemistry
Elimination Tool:

11 / 100

Category: Chemistry Ch 11 Class 11

Half life period of the first order reaction depends upon:

NUMS 2015
Chemistry
Reaction Kinetics
Elimination Tool:

12 / 100

Category: Chemistry Ch 4 Class 11

A liquid crystalline state exists between two temperatures i.e melting temperature and ____ temperature.

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

13 / 100

Category: Chemistry Ch 4 Class 11

The unit cell parameters of the monoclinic system are:

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

14 / 100

Category: Chemistry Ch 3 Class 12

The octahedral geometry of the complex [Co(NH3)6]2+ has hybridization:

NUMS 2019 Reconduct
Chemistry
d and f Block Elements
Elimination Tool:

15 / 100

Category: Chemistry

The shielding effect of inner electrons is responsible for:

NUMS Mock 3
Chemistry
Atomic Structure

16 / 100

Category: Chemistry

Who discovered positive rays (also called protons) and when?

NUMS Mock 4
Atomic Structure

17 / 100

Category: Chemistry Ch 1 Class 11

Chemical equations do not tell about the ______ because of certain limitations.

PMC Practice 29
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

18 / 100

Category: Chemistry Ch 10 Class 11

Each half reaction in ion electron method is balanced by adding:

PMC Sample 1
Chemistry
Electrochemistry
Elimination Tool:

19 / 100

Category: Chemistry

Q.1 Suppression of ionization means

20 / 100

Category: Chemistry

Q.85 Along period of periodic table, shielding effect

21 / 100

Category: Chemistry Ch 2 Class 12

Which one of the following statements is true?

NUMS 2016
Chemistry
s and p Block Elements
Elimination Tool:

22 / 100

Category: Chemistry Ch 8 Class 11

In a reaction:

A+B 2C

When equilibrium was attained, the concentration was

[A] = [B] = 4 moles/dm3

[C]= 6 moles/dm3
The equilibrium constant Kc of this reaction is:

NTS 2011
Chemistry
Chemical Equilibrium
Elimination Tool:

23 / 100

Category: Chemistry Ch 5 Class 11

Spectrum of which series is in the visible region?

24 / 100

Category: Chemistry Ch 11 Class 12

Methyl alcohol is used for production of

25 / 100

Category: Chemistry

Q.2 an element or its compound is first _________to get its _______spectrum by spectrometer

26 / 100

Category: Chemistry

Q.104  Which of the following does not show chain isomers

27 / 100

Category: Chemistry Ch 4 Class 12

Hardness of transition metals is due to ______?

PMC Practice 6
Chemistry
d and f Block Elements
Elimination Tool:

28 / 100

Category: Chemistry

Q.100 Which of the following is typical transition element?

29 / 100

Category: Chemistry Ch 7 Class 11

What is the measure of activation energy in an endothermic reaction?

UHS 2019
Chemistry
Thermochemistry
Elimination Tool:

30 / 100

Category: Chemistry Ch 2 Class 11

2 grams of H2 molecules contain ______ molecules.

NTS 2012
Chemistry
Stoichiometry
Elimination Tool:

31 / 100

Category: Chemistry Ch 3 Class 11

Which of the following substances has giant covalent structure?

PMC 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

32 / 100

Category: Chemistry

Which one of the following organic compounds have the least carbon-carbon bond length?

NUMS Mock 4
Chemistry
Hydrocarbons

33 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is unstable?

34 / 100

Category: Chemistry Ch 3 Class 11

According to Charles Law, when temperature is reduced to half the volume will be

35 / 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
Elimination Tool:

36 / 100

Category: Chemistry

Q.86 Al powder heated in steam produces Al2O3 and

37 / 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:

38 / 100

Category: Chemistry

When a charged particle is projected perpendicular to a magnetic field:

NUMS Mock 4
Physics
Electrostatics

39 / 100

Category: Chemistry Ch 8 Class 11

A reaction with a tendency of occurring in forward and backward direction simultaneously is termed as

PMC Sample 1
Chemistry
Chemical Equilibrium
Elimination Tool:

40 / 100

Category: Chemistry Ch 8 Class 12

In the reaction, R-C≡C-R → the reagent used to convert alkyne into trans alkene is:

NTS 2014
Chemistry
Hydrocarbons
Elimination Tool:

41 / 100

Category: Chemistry Ch 1 Class 12

Hydrogen resembles with alkali metals in all respects except

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

42 / 100

Category: Chemistry Ch 1 Class 11

What is the percentage by mass of Nitrogen in NH4(NO3)?

43 / 100

Category: Chemistry Ch 7 Class 11

The enthalpy of certain reactions at 273 K is -20.75 kJ. The enthalpy of the same reaction at 373 K (if heat capacities of reactants and products are the same) will be:

NTS 2017
Chemistry
Thermochemistry
Elimination Tool:

44 / 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

45 / 100

Category: Chemistry Ch 2 Class 11

The process of changing a solid directly into gas upon heating is known as:

46 / 100

Category: Chemistry Ch 6 Class 11

The common features, among the species CN, CO and NO are:

NUMS 2016
Chemistry
Chemical Bonding
Elimination Tool:

47 / 100

Category: Chemistry

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

48 / 100

Category: Chemistry

Which of the following is the percentage of the original quantity of a radioactive material left after five half-lives approximately.

NUMS Mock 4
Physics
Nuclear Physics

49 / 100

Category: Chemistry Ch 7 Class 11

Energy for the endothermic reaction is given a ____ value?

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

50 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is more soluble in water?

PMC Sample 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

51 / 100

Category: Chemistry Ch 8 Class 11

For an equilibrium change involving gaseous phase, the forward reaction is first order while the reverse reaction is second order. The unit of Kp for the forward equilibrium is:

NTS 2019
Chemistry
Chemical Equilibrium
Elimination Tool:

52 / 100

Category: Chemistry

The shape of CO2 molecule is similar to:

NUMS Mock 2
Chemistry
Chemical Bonding

53 / 100

Category: Chemistry

The amount (in liters) of Oxygen at STP that is required for the combustion of 4gm of ethylene is :

NUMS Mock 2
Chemistry
Stoichiometry

54 / 100

Category: Chemistry

Q.153 The properties of liquid crystals are intermediate b/w crystals and

55 / 100

Category: Chemistry Ch 16 Class 12

Which of the following is a water cleaning halogen?

56 / 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
Elimination Tool:

57 / 100

Category: Chemistry

Linear combination of atomic orbitals (LCAO) results in the formation of:

NUMS Mock 2
Chemistry
Chemical Bonding

58 / 100

Category: Chemistry Ch 14 Class 12

Which of the following can he used as a source of energy

59 / 100

Category: Chemistry Ch 3 Class 11

Upon which factor is vapour pressure not dependent:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

60 / 100

Category: Chemistry

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

61 / 100

Category: Chemistry Ch 2 Class 12

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:

62 / 100

Category: Chemistry Ch 11 Class 12

Phenol reacts with CH3COCl to give:

NUMS 2019 Reconduct
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

63 / 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:

64 / 100

Category: Chemistry Ch 3 Class 12

Aluminum reacts with H2SO4 to produce

65 / 100

Category: Chemistry

Q.147 Plasma “the fourth state of matter was identified by

66 / 100

Category: Chemistry Ch 6 Class 11

The number of sigma and pi bonds in 1-butene-3-yne?

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

67 / 100

Category: Chemistry

Q.100  I–I bond distance in case of gases iodine is

68 / 100

Category: Chemistry Ch 4 Class 11

Covalent bond is stronger than hydrogen bond by:

69 / 100

Category: Chemistry Ch 9 Class 11

The properties of liquid crystals are intermediate b/w crystals and

PMC Sample 3
Chemistry
Solution and Colloids
Elimination Tool:

70 / 100

Category: Chemistry

Q.116 Phenol does not evolve CO2 from NaHCO3 like carboxylic acids because phenol is

71 / 100

Category: Chemistry

Alkenes undergo:

NUMS Mock 2
Chemistry
Hydrocarbons

72 / 100

Category: Chemistry

Q.108 Temperature and volume in an experiment are part of

73 / 100

Category: Chemistry

Which statement is true about electron affinity?

NUMS Mock 2
Chemistry
Periodicity in Elements
Chemical Bonding

74 / 100

Category: Chemistry

 

Q.115 The crude petroleum is separated in fraction by

75 / 100

Category: Chemistry

Q.105 Ethane is obtained by electrolyzing-

76 / 100

Category: Chemistry Ch 6 Class 11

Second Ionization energy of M atom

77 / 100

Category: Chemistry Ch 13 Class 12

The carbonic acid which Is named after butter is:

78 / 100

Category: Chemistry

Transition Elements usually show:

NUMS Mock 2
Chemistry
d and f Block Elements

79 / 100

Category: Chemistry Ch 15 Class 12

Percentage of nitrogen by volume in air is:

UHS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

80 / 100

Category: Chemistry Ch 11 Class 12

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

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

81 / 100

Category: Chemistry

When was electron discovered?

82 / 100

Category: Chemistry Ch 5 Class 11

) The velocity of electron in outermost shell Is?

83 / 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
Elimination Tool:

84 / 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

85 / 100

Category: Chemistry Ch 14 Class 12

In the NaCl crystal, chloride ions present at the face center are distributed in:

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

86 / 100

Category: Chemistry Ch 12 Class 12

Which of the following Compound is not reduced by NaBH4 ?

PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Elimination Tool:

87 / 100

Category: Chemistry

Q86 : Which of the following is most ionic in nature

88 / 100

Category: Chemistry Ch 7 Class 12

Isomerism due to shifting of proton from one atom to another in a same molecule is known as:

NUMS 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

89 / 100

Category: Chemistry

Reaction of water with quicklime results in the rise in the temperature of the system. Using the concept of an energy change, indicates the nature of the reaction?

NUMS Mock 1
Chemistry
Thermochemistry

90 / 100

Category: Chemistry

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

91 / 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:

92 / 100

Category: Chemistry Ch 5 Class 11

When alpha particles are bombarded on beryllium

93 / 100

Category: Chemistry Ch 7 Class 12

Carbonyl group is present in

94 / 100

Category: Chemistry

 

Q.88  Most electronegative element among alkali metals

95 / 100

Category: Chemistry Ch 8 Class 11

Which of the following factor(s) affect a reversible chemical reaction in accordance with the Le – Chatelier Principle?

NUMS 2019 Reconduct
Chemistry
Chemical Equilibrium
Elimination Tool:

96 / 100

Category: Chemistry Ch 5 Class 11

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

97 / 100

Category: Chemistry Ch 1 Class 12

Element that is not found in Free State is?

98 / 100

Category: Chemistry

Q.110 Which of the following compound is an amide?

99 / 100

Category: Chemistry Ch 13 Class 12

Which type of carboxylic acid is produced from the hydrolysis of nitriles?

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

100 / 100

Category: Chemistry Ch 7 Class 12

In alkanes, each carbon has hybridization:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

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