Chemistry Practice Tests 5 - PLS Academy

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.

PLS Academy

Get Access to 20 thousands+ MCQs Including Topical MCQs, Practice Tests, Mock Tests, Solved Past Papers, Flashcards, Notes, FLPS, and Much More.

UNLOCK PREMIUM🔐

798

Created by Ali Durrani

NET Practice

Chemistry Practice Test 5

This is the Free Access to Limited MCQs. Enroll to PLS Boost Premium Bundle to Get More MCQs HERE

1 / 100

Category: Chemistry Ch 16 Class 12

Which of the following is a water cleaning halogen?

2 / 100

Category: Chemistry Ch 2 Class 12

By heating 25g of limestone (CaCO3) , the weight of carbon dioxide produced is

NTS 2011
Chemistry
s and p Block Elements
Elimination Tool:

A) 14 g

B) 71 g

C) 11 g

D) 2 g

3 / 100

Category: Chemistry Ch 1 Class 12

Which one of the following is acidic?

B(OH)3

Ca(OH)2

Mg(OH)3

NaOH

4 / 100

Category: Chemistry Ch 14 Class 12

All are enzymes involved in fermentation process except one:

NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
Elimination Tool:

A) Zymase

B) Invertase

C) Lipase

D) Diastase

5 / 100

Category: Chemistry

Solid CO2 dry ice has a structure just like:

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

A) Diamond

B) Sulphur

C) Graphite

D) None of the above options are correct

6 / 100

Category: Chemistry

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

NUMS Mock 3
Chemistry
Chemical Equilibrium

A) NH4+

B) H2O

C) H*

D) NH3

7 / 100

Category: Chemistry Ch 2 Class 12

Color of Epsom salt Is

White

Pink

Blue

Green

8 / 100

Category: Chemistry

Q.138 Instantaneous rate of reaction is the rate at any

A. At Equilibrium

B. One instant

C. Given Temperature

D. Given Pressure

9 / 100

Category: Chemistry Ch 8 Class 11

A system at equilibrium can be disturbed by:

NTS 2013
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Concentration change

B) Pressure change

C) Temperature

D) All of the above

10 / 100

Category: Chemistry Ch 7 Class 12

Study that deals with hydrocarbons and its derivatives Is known as:

Inorganic chemistry

Organic chemistry

Analytical chemistry

Physical chemistry

11 / 100

Category: Chemistry Ch 1 Class 12

Outer transition elements belong to

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

A) s-block

B) p-block

C) d-block

D) f-block

12 / 100

Category: Chemistry Ch 3 Class 11

Which of the following is constant during an isothermal process?

Volume

Pressure

Temperature

Both b and c

13 / 100

Category: Chemistry Ch 9 Class 11

An ideal solvent dissolves maximum solute at?

Boiling point

At room temperature

Saturation point

At Freezing point

14 / 100

Category: Chemistry

Q.121 The lost in globular structure of enzyme is called ___________ of enzyme

A. Activation

B. Concentration

C. Saturation

D. Denaturation

15 / 100

Category: Chemistry Ch 15 Class 12

Bacteria plays an important role in:

PMC 2021 Tested
Chemistry
Environmental Chemistry
Elimination Tool:

A) Phosphorus Cycle

B) Nitrogen Cycle

C) Carbon Cycle

D) All of these

16 / 100

Category: Chemistry Ch 10 Class 12

Ethyl iodide and n-propyl iodide are allowed to undergo Wurtz reaction. The alkane which will not be obtained in this reaction is:

NUMS 2016
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) butane

B) propane

C) pentane

D) hexane

17 / 100

Category: Chemistry

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

NUMS Mock 1
Chemistry
Environmental Chemistry

A) Immiscible

B) Highly soluble

C) Insoluble

D) Partially soluble

18 / 100

Category: Chemistry Ch 1 Class 12

The formula of washing soda is:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

A) N2CO3

B) Na2CO3 . H2O

C) Na2CO3 . 7H2O

D) Na2CO3 . 10 H2O

19 / 100

Category: Chemistry Ch 4 Class 11

The necessary condition for Boyle’s law to hold is that the process must be ______.

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

A) Isobaric

B) Adiabatic

C) Isochoric

D) Isothermal

20 / 100

Category: Chemistry Ch 1 Class 11

The smallest number of molecules are present in?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 3.6g of H2

B) 4.8g of C2H5OH

C) 2.8 g of CO

D) 5.4 g of N2O5

21 / 100

Category: Chemistry Ch 3 Class 12

Burning of amorphous Boron in air forms

B(OH)3

B203

Mixture of B203& BN

22 / 100

Category: Chemistry Ch 4 Class 12

Which of the following does not occur in Free State?

Nitrogen

Phosphorous

Oxygen

Sulphur

23 / 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:

A) M???3

B) A?2(??3)3

C) K2??3

D) ????3

24 / 100

Category: Chemistry

The stability in the following structure is due to the:

NUMS Mock 4
Chemistry
Chemical Bonding

A) Weak van der Waal’s forces

B) Disulfide bridges

C) Presence of unpaired electron in the structure

D) Hydrogen bonding between NH group of one peptide and CO group of another peptide

25 / 100

Category: Chemistry Ch 10 Class 11

In which of the following nitrogen compounds, does N has the highest oxidation state?

NTS 2018
Chemistry
Electrochemistry
Elimination Tool:

A) NH2OH

B) N2H4

C) HNO3

D) NH3

26 / 100

Category: Chemistry Ch 3 Class 12

Aluminum silicate is used In:

Cement

Glass

Urea

None of these

27 / 100

Category: Chemistry Ch 14 Class 12

Which one of the following compounds is an additional polymer?

UHS 2019
Chemistry
Macromolecules
Elimination Tool:

A) Polyvinyl chloride

B) Nylon

C) Carbohydrate

D) Polyester

28 / 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:

A) rate of reaction

B) pressure

C) conditions

D) Both A & C

29 / 100

Category: Chemistry Ch 7 Class 12

Formyl group is present in

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

A) Aldehydes

B) ethers

C) thiol

D) acetone

30 / 100

Category: Chemistry

Q.72 Isopentane is an example of_

A. Aromatic compounds

B. Branched chain compound

C. Alicyclic compounds

D. None of these

31 / 100

Category: Chemistry Ch 5 Class 12

Which of the following is the highest oxidizing agent?

Cl2

Br2

32 / 100

Category: Chemistry Ch 11 Class 11

The rate of chemical reaction:

PMC Sample 2
Chemistry
Reaction Kinetics
Elimination Tool:

A) Increases as the reaction proceeds

B) Decrease as the reaction proceeds

C) May increase or decrease during the reaction

D) Remains constant as the reaction proceeds

33 / 100

Category: Chemistry Ch 2 Class 11

C12H22O11+ conc. H2SO4—> 12 C + ? + H2SO4

NTS 2016 SMBBMC
Chemistry
Stoichiometry
Elimination Tool:

A) 11 H2O

B) 11 O2

D) 11 H2

C) 11 CO2

34 / 100

Category: Chemistry Ch 11 Class 11

Rate determining step of a chemical reaction which occur in more than one step depends upon the

PMC Sample 1
Chemistry
Reaction Kinetics
Elimination Tool:

A) fastest step

B) Slowest Step

C) catalyst used

D) Temperature of reaction

35 / 100

Category: Chemistry Ch 3 Class 11

CO2 and SO2 both are tri-atomic molecules but heat of vaporization of SO2 is greater than that of CO2 due to:

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

A) High electronegativity of S

B) Greater size of SO2

C) SO2 is polar and CO2 is non-polar

D) SO2 is more acidic than CO2

36 / 100

Category: Chemistry Ch 9 Class 11

From a mixture of CO2and H2gases, CO2can be separated by passing the mixture through:

NTS 2013
Chemistry
Solution and Colloids
Elimination Tool:

A) Water at high temperature

B) Water under high pressure

C) Cold water

D) Acidified water

37 / 100

Category: Chemistry Ch 4 Class 11

Crystal structure of diamond is

Trigonal

Tetrahedral

Cubic

None of these

38 / 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:

A) The values of Kp and Kc are different

B) The value of Kp is greater than Kc

C) The value of Kc is greater than Kp

D) The values of Kp and Kc are the same

39 / 100

Category: Chemistry Ch 5 Class 11

Electronic configuration of M2+ ion is 2, 8, 14 and its atomic weight is 56 amu. The number of neutrons in its nucleus are:

NTS 2017
Chemistry
Atomic Structure
Elimination Tool:

A) 30

B) 32

C) 42

D) 52

40 / 100

Category: Chemistry Ch 3 Class 11

A child’s balloon has a volume 3.80 dm3, when the temperature is 35°C. If the balloon is put in a refrigerator and cooled to 5°c, the approximate volume of the balloon is (assume pressure inside the balloon is equal to atmospheric pressure):

NTS 2011
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 3.00 dm3

B) 3.43dm3

C) 3.08 dm3

D) 3.25 dm3

41 / 100

Category: Chemistry Ch 1 Class 12

Smallest element in the periodic table is?

Hydrogen

Fluorine

Lithium

Uranium

42 / 100

Category: Chemistry Ch 11 Class 11

The rate of a chemical reaction is directly proportional to the product of active masses of the reactants, it is referred to as:

NTS 2018
Chemistry
Reaction Kinetics
Elimination Tool:

A) Law of conservation of energy

B) Law of mass action

C) Law of conservation of mass

D) Active mass law

43 / 100

Category: Chemistry

Q.168 In aldol condensation, nucleophile is_

A. Hydroxyl ion

B. Carbocation

C. Carbanion

D. Water

44 / 100

Category: Chemistry Ch 7 Class 11

Which of the following values of heat of formation indicates that the product is least stable?

NTS 2017
Chemistry
Thermochemistry
Elimination Tool:

A) -393.5 KJ

B) -972.7 KJ

C) +89.9 KJ

D) +272.2 KJ

45 / 100

Category: Chemistry

Precipitation occurs when the product of ionic concentrations is:

NUMS Mock 4
Chemistry
Chemical Equilibrium

A) Greater than Ksp

B) Less than Ksp

C) Equal to Ksp

D) Equal to unity

46 / 100

Category: Chemistry

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

A..-188.1

B.188.1

C.184.4

D.184.4

47 / 100

Category: Chemistry Ch 1 Class 11

Mass spectrometer is used to determine which of the following quantity?

) Atomic mases

Atomic number

Both a and b

None of these

48 / 100

Category: Chemistry Ch 14 Class 12

PVC is created from which halogen

49 / 100

Category: Chemistry Ch 7 Class 12

IUPAC name of Divinyl acetylene is:

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

A) 1, 5 – Hexadiyne – 3 – ene

B) 1, 5 – Hexadiene 3 – yne

C) 3 – Hexene – 1,5 – diyne

D) 3 – Hexyne – 1 , 5 – diene

50 / 100

Category: Chemistry Ch 6 Class 11

Which noble gas has highest ionization energy?

51 / 100

Category: Chemistry

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

NUMS Mock 4
Chemistry
Chemical Equilibrium

A) Increasing reactant concentrations

B) Equal number of reactant and product gas molecules

C) Increasing temperature

D) Using a catalyst

52 / 100

Category: Chemistry

Q.104 The maximum number of electrons accommodated in a shell or energy level is calculated by formula

A.n^2

B. 2n^2

C. 2n

D.3n

53 / 100

Category: Chemistry Ch 9 Class 11

Ca(OH)2 is sparingly soluble having solubility value 6.5 x 10-6. What’ll be its solubility:

UHS 2017 Reconduct
Chemistry
Solution and Colloids
Elimination Tool:

A) 2.75 x 10-2

B) 2.75 x 102

C) 1.17 x 10-2

D) 3.63 x 103

54 / 100

Category: Chemistry Ch 4 Class 12

Which one of the following Is a vulcanizing agent?

Sodium

Iron

Sulphur

Potassium

55 / 100

Category: Chemistry

Q.150 Who attributed the deviation of real gases from ideal behavior?

A. Boyle's law

B. Charles's law

C. Avogadro's law

D. Van der Waals

56 / 100

Category: Chemistry Ch 8 Class 12

Formula of Thionyl chloride is

SCI3

S2Cl2

SOCl2

SOCI3

57 / 100

Category: Chemistry

Which one of the following alkaline earth metal carbonates is thermally the most stable?

NUMS Mock 3
Chemistry
s and p Block Elements

A) BaCO3

B) MgCO3

C) CaCO3

D) SrCO3

58 / 100

Category: Chemistry Ch 2 Class 12

The chemical name of the baking powder is:

NTS 2011
Chemistry
s and p Block Elements
Elimination Tool:

A) Sodium carbonate

B) Sodium bicarbonate

C) Sodium hydrogen carbonate

D) Sodium hydroxide

59 / 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?

NTS 2015 SMBBMC
Chemistry
Hydrocarbons
Elimination Tool:

A) C2H6

B) C3H4

C) C3H6

D) C3H8

60 / 100

Category: Chemistry Ch 9 Class 12

Gasoline is a mixture of?

NUMS 2018
Chemistry
Hydrocarbons
Elimination Tool:

A) C3 – C5 alkanes

B) C15 – C20 alkanes

C) C11 – C15 alkanes

D) C7 – C9 alkanes

61 / 100

Category: Chemistry

Impurities of lead in silver are removed by:

NUMS Mock 2
Chemistry
d and f Block Elements

A) Parke’s process

B) Solvay process

C) Cyanide process

D) Amalgamation process

62 / 100

Category: Chemistry

The shape of CO2 molecule is similar to:

NUMS Mock 2
Chemistry
Chemical Bonding

A) H2S

B) SO2

C) SnCl2

D) BeF2

63 / 100

Category: Chemistry Ch 10 Class 11

The common oxidation number of halogens is:

PMC 2020
Chemistry
Electrochemistry
Elimination Tool:

A) -1

B) +1

C) -2

D) 0

64 / 100

Category: Chemistry Ch 11 Class 11

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

NTS 2019
Chemistry
Reaction Kinetics
Elimination Tool:

A) The temperature of the reaction

B) The concentration of reactants.

C) Concentration of products

D) Catalyst used

65 / 100

Category: Chemistry Ch 15 Class 12

Urea is the most widely used nitrogen fertilizer in Pakistan. Its composition is:

UHS 2015
Chemistry
Environmental Chemistry
Elimination Tool:

A) NH2CO

B) N2H5CO2

C) N2H4CO2

D) N2H4CO

66 / 100

Category: Chemistry Ch 11 Class 12

Primary, Secondary Tertiary alcohols can be distinguished by Lucas test in which .. appear

oily Layer

Brown color

Both a and b

None of these

67 / 100

Category: Chemistry Ch 7 Class 12

Which of the following pair groups belong to meta directing Groups?

NTS 2019
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) NH2 and -NO2

B) -OR and -OH

C) -NO2 and – SO3H

D) CI and -COOH

68 / 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
Elimination Tool:

A) 3-ethyl-2, 2, 4-trimethyl pentane

B) 4-ethyl-2, 2, 4-trimethyl pentane

C) 5-ethyl-2, 2, 4-trimethyl pentane

D) 2-ethyl-2, 2, 4-trimethyl pentane

69 / 100

Category: Chemistry Ch 3 Class 11

What is the volume in cm3 of 3.01 x 10^23 molecules of O2 gas at S.T.P.?

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

A) 1000 cm3

B) 11000 cm3

C) 1120 cm3

D) 11200 cm3

70 / 100

Category: Chemistry Ch 3 Class 12

Which one of the following is an acid?

H3BO3

Al(0H)3

Ca(0H)2

NaOH

71 / 100

Category: Chemistry

Q.106 +G108 The Markownikof’s rule is applicable only on

A. 2-Butene

B. 2-Bromo-3-chloro-2-butene

C. 2,3-Dimethyl-2-butene

D. 2-Methyl-2-butene

72 / 100

Category: Chemistry Ch 7 Class 12

IUPAC name of the compound (CH3)2-CH-CH(C2H5)-C(CH3)3 is :

NTS 2015 SMBBMC
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) 3-ethyl-2,2,4-trimethyl pentane

B) 3-ethyl-2,2,4-trimethyl pentene

C) 3-ethyl- 2,4-dimethyl pentane

D) 4-ethyl, 3 methyl hexane

73 / 100

Category: Chemistry

Sodium Benzoate on reacting with soda lime forms:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

A) Benzoic Acid

B) Benzene

C) Toluene

D) Benzaldehyde

74 / 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
Elimination Tool:

A) 394 kJ / mol

B) -394 kJ / mol

C) 197 kJ / mol

D) -197 kJ / mol

75 / 100

Category: Chemistry

Q.21 SN reaction is a_______________?

A. Multistep reaction

B. Two step reactions

C. Concerted reaction

D. 3 step reaction

76 / 100

Category: Chemistry Ch 6 Class 11

Which of the following molecules have zero Dipole moments?

NTS 2011
Chemistry
Chemical Bonding
Elimination Tool:

A) CCl4

B) CO2

C) Cl2

D) C6H6

E) All of the above

77 / 100

Category: Chemistry Ch 10 Class 12

How would an ammonium group affect the benzene ring for subsequent reactions?

NTS 2017
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Deactivate the ring; meta directing

B) Activate the ring; ortho-para directing

C) Deactivate the ring; ortho-para directing

D) Activate the ring; meta directing

78 / 100

Category: Chemistry Ch 7 Class 11

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

UHS 2019
Chemistry
Thermochemistry
Elimination Tool:

A) The energy of activation of backward reaction is less than that of forward reaction

B) The energy of activation of backward reaction is more that that of forward reaction.

C) The energy of activation of forward reaction is less than that of backward reaction.

D) The energy of activation of forward – backward reaction is same.

79 / 100

Category: Chemistry Ch 15 Class 12

If CO2 level increase from the normal level, what will happen?

ETEA 2017
Chemistry
Environmental Chemistry
Elimination Tool:

A) Decrease in sea level

B) Increase in sea level

C) Longer winter season

D) Daytime will increase

80 / 100

Category: Chemistry Ch 5 Class 11

Spectrum of which series is in the visible region?

Lyman series

Balmer series

Paschen series

Pfund series

81 / 100

Category: Chemistry Ch 14 Class 12

) Plastic cannot be recycled by

Depolymerization

Transformation

Deformation

None of these

82 / 100

Category: Chemistry

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

NUMS Mock 3
Chemistry
Atomic Structure

A) E = hcv

B) E = c/v

C) E = cv

D) None of these options are correct

83 / 100

Category: Chemistry Ch 1 Class 11

Actual yield is always experimental yield.

Less than

More than

Same as

None of the above

84 / 100

Category: Chemistry Ch 2 Class 12

Caster kellners cell evaporated has replaced __________ because the Caster Kellner process evaporates__________?

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

A) Gibbs diaphragm… mercury

B) Iron box… aluminium

C) Pyrites burners… oleum

D) Nelson's cell…. Chlorine

85 / 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
Elimination Tool:

A) Benzene

B) Toluene

C) Xylene

D) Cyclohexane

86 / 100

Category: Chemistry Ch 5 Class 12

Sulfur with HI acts as a:

Strong oxidizing agent

Strong reducing agent

Weak oxidizing agent

Weak reducing agent

87 / 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:

A) Iodine crystal

B) Solid CO2

C) Silica

D) White phosphorus

88 / 100

Category: Chemistry Ch 14 Class 12

Adipic acid and Hexamethylene dlamine combine to form?

Nylon-6,6

Epoxy Resin

Polystyrene

Polyvinyl chloride

89 / 100

Category: Chemistry Ch 10 Class 11

In the following reaction:

3Br2 +6CO32- + 3H2O → 5Br-1 + BrO3-1 + 6HCO3-1

NTS 2014
Chemistry
Electrochemistry
Elimination Tool:

A) bromine is: reduced and water Is oxidized

B) bromine is both reduced and oxidized

C) bromine is oxidized and carbonate is reduced

D) bromine is neither reduced or oxidized

90 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following is an example of a co-polymer?

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

A) Polyamide

B) Polystyrene

C) Polyvinyl acetate

D) Polyvinyl chloride

91 / 100

Category: Chemistry Ch 4 Class 12

Which of the following sets is of coinage metals?

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

A) Cu, Ag, Au

B) Zn, Cd, Hg

C) Au, Ag, Zn

D) Li, Na, K

92 / 100

Category: Chemistry

Q.99 The ionic compound with the highest lattice energy is

A. NaF

B. NaCl

C. NaBr

D. NaI

93 / 100

Category: Chemistry Ch 15 Class 12

Ammonium nitrate contain nitrogen

94 / 100

Category: Chemistry

A certain radioactive isotope has a half-life of 50 days. Fraction of the material left behind after 100 days will be:

NUMS Mock 2
Chemistry
Analytical Chemistry

A) 125%

B) 25%

C) 50%

D) 100%

95 / 100

Category: Chemistry Ch 5 Class 11

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

NTS 2013
Chemistry
Atomic Structure
Elimination Tool:

A) Ionization Energy

B) Electron Affinity

C) Electronegativity

D) Atomic Radius

96 / 100

Category: Chemistry

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

A. Increase electron density at ortho para position

B. Decrease electron density at ortho and para positions

C. Make benzene less reactive

D. Both B and C

97 / 100

Category: Chemistry Ch 13 Class 12

Which of the following carboxylic acids is used in medicine as a local irritant?

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

A) Formic acid

B) Acetic acid

C) Benzoic acid

D) Amino acid

98 / 100

Category: Chemistry Ch 7 Class 12

Na, Ca & Mg are

Organic

Inorganic non-metals

) Inorganic metals

Organic metals

99 / 100

Category: Chemistry Ch 7 Class 12

Which of the following has the lowest vapour pressure at 20 degrees Centigrade?

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Diethyl ether

B) Chloroform

C) Carbon tetrachloride

D) Water

100 / 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:

A) Acetaldehyde

B) Acetone

C) Carboxylic acid

D) Alkene

Your score is

The average score is 55%

Structured Practice for Best Entry Test Preparation

This topic-wise and chapter-wise practice test allows students to focus on individual chemistry concepts, numerical problems, reactions, and practical exercises. Regular practice enhances understanding, sharpens problem-solving abilities, and builds confidence to tackle both board and competitive exam questions efficiently.

Free Resources for Best Entry Test Preparation

Students can access free Chemistry Practice Test 5 to systematically improve knowledge, calculation skills, and problem-solving abilities. This test is suitable for FSC Board Exams as well as major entry tests, helping students perform better in the chemistry section. PLS Academy provides these resources to support students in their preparation.

JazakAllah