Chemistry Practice Tests 4 - PLS Academy

Chemistry Practice Test 4

Chemistry Practice Test 4 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 electrochemistry, redox reactions, solutions, and molarity calculations, helping students improve accuracy and problem-solving skills.

PLS BoostPLS Academy Bundle

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

UNLOCK PREMIUM🔐

733

Created by Ali Durrani

NET Practice

Chemistry Practice Test 4

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

1 / 100

Category: Chemistry Ch 10 Class 11

The oxidation potential standard hydrogen electrode is arbitrarily taken as:

NTS 2019
Chemistry
Electrochemistry
Elimination Tool:

A) -0.76 volts

B) 0.00 vols

C) +1.5 volts

D) 1.0 vots

2 / 100

Category: Chemistry Ch 2 Class 12

For Alkali Metals, decrease in the ionization potential is because of the increasing:

Charge on the nucleus

) Distance between nucleus and outer most electron

Size of the atom

None of these

3 / 100

Category: Chemistry Ch 4 Class 12

Copper reacts with hot concentrated H2SO4 in presence of

Air

Water

Ammonia

Strong heat

4 / 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:

A) 1

B) 2

C) 3

D) 4

5 / 100

Category: Chemistry Ch 16 Class 12

Ozone Is

6 / 100

Category: Chemistry Ch 13 Class 12

Carboxylic acids do not give the characteristics reaction of >C=O group because of:

PMC Practice 1
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Polar nature

B) Resonance

C) Symmetrical structure

D) Attached alkyl group

7 / 100

Category: Chemistry Ch 7 Class 11

Through what phenomenons does heat flow?

PMC Sample 2
Chemistry
Thermochemistry
Elimination Tool:

A) Conduction

B) Convection

C) Radiation

D) All of these

8 / 100

Category: Chemistry

The test used to distinguish among primary, secondary, and tertiary alcohols is:

NUMS Mock 4
Chemistry
Alcohols, Phenols and Ethers

A) 2, 4 – DNPH test

B) Tollens' Test

C) Lucas Test

D) Fehling solution test

9 / 100

Category: Chemistry Ch 10 Class 11

The hydrogen gas bubbling into one molar solution of HCl has a pressure of

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

A) 2atm

B) 780 mmHg

C) 19 Psi

D) 1 atm

10 / 100

Category: Chemistry Ch 6 Class 12

Which of the following states of copper Is more stable?

Cu+2

Cu+1

Both a and b

Depends on environment

11 / 100

Category: Chemistry Ch 14 Class 12

Nylon-6,6 is also called:

UHS 2018
Chemistry
Macromolecules
Elimination Tool:

A) Poly styrene

B) Polyester

C) Polyamide

D) Polyvinyl alcohol

12 / 100

Category: Chemistry Ch 10 Class 11

Decrease in Oxidation number is

PMC Sample 2
Chemistry
Electrochemistry
Elimination Tool:

A) Oxidation

B) Reduction

C) Both A and B

D) None of these

13 / 100

Category: Chemistry Ch 8 Class 12

Which one of the following is saturated hydrocarbon?

Octane

Nonane

Decane

All of the above

14 / 100

Category: Chemistry Ch 5 Class 11

Which one of the following is not an isotope of hydrogen:

NUMS 2014
Chemistry
Atomic Structure
Elimination Tool:

A) Deuterium

B) Tritium

C) Ortho hydrogen

D) None of these

15 / 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
Elimination Tool:

A) By increasing temperature

B) Using a suitable catalyst

C) By an increase in activation energy

D) By increasing conc. Of reactants

16 / 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

17 / 100

Category: Chemistry Ch 2 Class 12

The carbonates of alkali metals are soluble in water except:

NUMS 2020
Chemistry
s and p Block Elements
Elimination Tool:

A) K2CO3

B) Li2CO3

C) Na2CO3

D) Rb2CO3

18 / 100

Category: Chemistry

Q.123 Which of the following is succinic acid?

A. Ethanoic acid

B. Hexane dioic acid

C Butane dioic acid

D. Propanoic acid

19 / 100

Category: Chemistry Ch 6 Class 11

Paramagnetism is due to:

Unpaired electron

Complete valence shell

Paired electron

Ionization

20 / 100

Category: Chemistry Ch 10 Class 11

Current in electrolysis is carried through?

PMC Practice 1
Chemistry
Electrochemistry
Elimination Tool:

A) Free electrons

B) Positive Ions

C) Negative Ions

D) Both B and C

21 / 100

Category: Chemistry Ch 3 Class 12

) Aluminium is agent?

Good oxidizing

Weak reducing

Good reducing

Both oxidizing and reducing agent

22 / 100

Category: Chemistry Ch 11 Class 11

The rate of reaction:

NUMS 2020
Chemistry
Reaction Kinetics
Elimination Tool:

A) Increases as the reaction proceeds

B) Decreases as the reaction proceeds

C) Remains the same as the reaction proceeds

D) May decrease or increase as the reaction proceeds

23 / 100

Category: Chemistry Ch 11 Class 12

Which of the following compounds will give a secondary alcohol after reaction with NaBH4?

PreMedPK MDCAT Mock 3
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) CH3COCH3

B) CH3COOCH3

C) CH3CH2CHO

D) CH3CH2COOH

24 / 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:

A) atm

B) atm2

C) atm-1

D) atm-2

25 / 100

Category: Chemistry Ch 6 Class 11

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

PH3

NH3

CH4

None of these

26 / 100

Category: Chemistry Ch 5 Class 11

The maximum number of electrons that an orbital can accommodate is/are:

NTS 2010
Chemistry
Atomic Structure
Elimination Tool:

A) 0

B) 1

C) 2

D) 3

27 / 100

Category: Chemistry Ch 8 Class 12

) If 2-butene is treated with KMn04, the product is:

Butanoic acid

Propanoic acid

Butyric acid

Acetic acid

28 / 100

Category: Chemistry Ch 1 Class 12

Metallic character of the elements:

NTS 2019
Chemistry
Periodicity in Elements
Elimination Tool:

A) decreases down the groups

B) increases down the groups

C) decreases across the periods

D) increases across the periods

29 / 100

Category: Chemistry Ch 1 Class 12

Which of the following elements has the lowest ionistion enthalpy?

PMC Sample 2
Chemistry
Periodicity in Elements
Elimination Tool:

A) Na

B) K

C) Mg

D) Al

30 / 100

Category: Chemistry Ch 2 Class 12

The most dense element is:

NTS 2013
Chemistry
s and p Block Elements
Elimination Tool:

A) Li

B) K

C) Ca

D) Ba

31 / 100

Category: Chemistry Ch 1 Class 12

Covalent hydrides are:

Gaseous

Solid

Liquids

Both a & c

32 / 100

Category: Chemistry Ch 6 Class 12

Which of following transition complex will have most stable square planar structure?

(MnCI4)2-

PCI5

Cu(NI13)4)2-

(Co(N143)6)2-

33 / 100

Category: Chemistry Ch 3 Class 11

Solid CO2 dry ice has a structure just like:

NUMS 2014
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Diamond

B) Sulphur

C) Graphite

D) None of the above

34 / 100

Category: Chemistry Ch 9 Class 11

The osmotic pressure of equimolar solutions of BaCl2, NaCl and sucrose will be in the order:

NUMS 2016
Chemistry
Solution and Colloids
Elimination Tool:

A) Sucrose > NaCl > BaCl2

B) Sucrose > BaCl2 > NaCl

C) NaCl > BaCl2 > Sucrose

D) BaCl2 > NaCl > Sucrose

35 / 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

36 / 100

Category: Chemistry

Q.132 Cyclic compounds consist of except?

A. Alicyclic

B. Aromatic

C. Acyclic compounds

D. Carbocyclic compounds

37 / 100

Category: Chemistry

Hydrolysis accompanied by bond cleavage is called

Hydrogenation

Hydration

Partial hydration

Hydrogenolysis

38 / 100

Category: Chemistry

Q.5 Allotropes are of same

A. Compounds

B. Molecules

C. Ions

D. Element

39 / 100

Category: Chemistry

Q.109 What is the mass of one mole aspartame having formula C14H18N:O5?

A. 4g

B.40g

C.50g

D.1g

40 / 100

Category: Chemistry Ch 4 Class 12

In rhombic sulphur there are atoms in each molecule?

41 / 100

Category: Chemistry

Le Chatelier Principle is about:

NUMS Mock 1
Chemistry
Chemical Equilibrium

A) Reaction Mixture

B) Reactants

C) Equilibrium Mixture

D) Products

42 / 100

Category: Chemistry Ch 3 Class 12

Which of the following transition metals has the highest variable oxidation state?

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

A) W

B) Pt

C) Hg

D) Mn

43 / 100

Category: Chemistry Ch 1 Class 11

Which of the following has six isotopes?

PMC Practice 4
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Manganese

B) Tin

C) Calcium

D) Carbon

44 / 100

Category: Chemistry

Q.11 Acetic acid is soluble in;

A. Water, Alcohol, Ether

B. HCL, HB, HI

C. Bromine water

D. All of these

45 / 100

Category: Chemistry Ch 6 Class 11

The raindrop acquires a spherical shape and ink spread over blotting paper due to:

NTS 2010
Chemistry
Chemical Bonding
Elimination Tool:

A) Surface tension

B) Adhesive forces

C) Viscosity

D) Polarity

46 / 100

Category: Chemistry Ch 11 Class 11

The rate constant of a first-order reaction is 3 x 10-6 per second.

If the initial concentration is 0.10 M, the initial rate of reaction is:

NUMS 2018
Chemistry
Reaction Kinetics
Elimination Tool:

A) 3 x 10-3 Ms-1

B) 3 x 10-4 Ms-1

C) 3 x 10-6 Ms-1

D) 3 x 10-7 Ms-1

47 / 100

Category: Chemistry Ch 6 Class 11

Every sp3 orbital is oriented in space In such a way that angle between them is:

109.5

104.5

120

180

48 / 100

Category: Chemistry Ch 7 Class 11

Value of heat capacity of water is

4.51 J/g

4.18 J/g

4.921J/g

4.21J/g

49 / 100

Category: Chemistry Ch 1 Class 12

7′ Period of the Periodic Table is:

Complete

Incomplete

Called Long Period

None of these

50 / 100

Category: Chemistry Ch 6 Class 11

The molecule with zero dipole moment is:

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) NH3

B) H2O

C) BF3

D) SO2

51 / 100

Category: Chemistry

Q.116 Distillation of calcium acetate and calcium formate produces?

A. Formaldehyde

B. Acetaldehyde

C. Acetone

D. None of these

52 / 100

Category: Chemistry Ch 7 Class 11

Energy for the endothermic reaction is given a ____ value?

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

A) Positive

B) Negative

C) Zero

D) Neither positive nor negative

53 / 100

Category: Chemistry Ch 15 Class 12

What is formed by a series of complex reactions of ozone with water in the troposphere that are driven by sunlight?

NUMS 2019 Cancelled
Chemistry
Environmental Chemistry
Elimination Tool:

A) O radical

B) H radical

C) OH radical

D) H3O radical

54 / 100

Category: Chemistry Ch 9 Class 11

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

55 / 100

Category: Chemistry

Q.93 The ionizatior energy of group _____________shows abnormal trend

A. 3A & 4A

B. SA &6A

C. 6A & 4A

D. 3A & 6A

56 / 100

Category: Chemistry Ch 1 Class 11

Which of the following statement about Avogadro’s hypothesis is correct?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Under similar conditions of temperature and pressure, gases react with each other in simple ratio.

B) Under similar conditions of temperature and pressure, equal volumes of all gases contain same number of molecules.

C) At NTP all gases contain same number of molecules.

D) Gases always react with gases only at given temperature and pressure.

57 / 100

Category: Chemistry Ch 15 Class 12

Photochemical smog is primarily caused by

ETEA 2019
Chemistry
Environmental Chemistry
Elimination Tool:

A) O3

B) NO2

C) SO3

D) CO2

58 / 100

Category: Chemistry

Q.32 vapor pressure is measured by calculating difference in liquid pressure and

A mercury pressure

B. glass pressure

C. atmospheric pressure

D. container pressure

59 / 100

Category: Chemistry Ch 13 Class 12

In the case of HOCH2CH2CH2COOH, from where is numbering started?

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

A) OH group is given number 1 position

B) Carboxylic acid is given number 1 position

C) COOH is given number 3 position

D) COOH is given number 4 position

60 / 100

Category: Chemistry

Q.157 Shifting the position of equilibrium can be used to Increase

A. Temperature

B. Pressure

C. Yield of reaction

D. All of these

61 / 100

Category: Chemistry Ch 10 Class 12

The only o, p−directing group which is deactivating in nature is:

NTS 2014
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) -NH2

B) -OH

C) -X (halogens)

D) -R (alkyl groups)

62 / 100

Category: Chemistry Ch 11 Class 11

The influence of temperature on reaction rate is predicted by:

NUMS 2019 Reconduct
Chemistry
Reaction Kinetics
Elimination Tool:

A) Free energy change

B) Van Der Waals equation

C) Arrhenius equation

D) Kinetic equation

63 / 100

Category: Chemistry Ch 14 Class 12

Monomers of Nylon 6,6 Is/are:

Caprolactam

Adipoyl chloride

Hexamethylene diarnine

Both b and c

64 / 100

Category: Chemistry Ch 6 Class 11

Bond angle of Ethane is:

109.5

120

180

Different

65 / 100

Category: Chemistry Ch 14 Class 12

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

Lipids

Carbohydrates

Both a and b

None of these

66 / 100

Category: Chemistry

Which of the following is the most environmentally friendly source to derive energy?

NUMS Mock 1
Chemistry
Environmental Chemistry

A) Lead-acid accumulator

B) H2- O2fuel cell

C) Silver oxide battery

D) Alkaline battery

67 / 100

Category: Chemistry Ch 11 Class 11

Blue litmus turns red in a solution of PH

NUMS 2014
Chemistry
Acids, Bases and Salts
Elimination Tool:

A) Below 7

B) 7

C) Above 7

D) at all 7

68 / 100

Category: Chemistry Ch 3 Class 12

Which of the following elements of Group 3 is non-metallic in character?

69 / 100

Category: Chemistry Ch 1 Class 12

According to which phenomenon, “the properties of elements are the periodic function of their atomic number.”

NTS 2012
Chemistry
Periodicity in Elements
Elimination Tool:

A) Mendeleev's periodic law

C) Doberenier's triads

D) Lothar Meyer’s classification

E) Modern periodic law

70 / 100

Category: Chemistry Ch 3 Class 11

Which of the following solids is an example of a substance with a macromolecular structure?

NUMS 2016
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Aluminium chloride

B) Ice

C) Magnesium oxide

D) Silicon (IV) oxide

71 / 100

Category: Chemistry Ch 3 Class 12

Which element among the following forms a protective oxide coating on exposure to air?

Nitrogen

Aluminium

Boron

72 / 100

Category: Chemistry Ch 11 Class 12

Boiling point of C2H5OH is high than phenol because:

Of Its stability

Presence of intermolecular H-bond

Both a & b

Its flammable

73 / 100

Category: Chemistry Ch 4 Class 12

The transition elements belongs to Group VI B are

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

A) Zn, Cd, Hg

B) Fe, Ru, Os

C) Mn, Te, Re

D) Cr, Mo, W

74 / 100

Category: Chemistry Ch 8 Class 11

Consider the following reaction

N2(g) + O2(g) 2NO (g) Kc- 0.1 at 2000 C

If the original concentration of N2 and O2 were 0.1 M each. Calculate the concentrations of NO at equilibrium.

NTS 2016 DUHS & JSMU
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 0.028 M

B) 0.0012 M

C) 0.18 M

D) 0.0018 M

75 / 100

Category: Chemistry Ch 5 Class 11

When B- particles are sent through a thin metal foil, most of them go straight through the foil as:

NTS 2017
Chemistry
Atomic Structure
Elimination Tool:

A) B- particles are much heavier than electrons

B) B- particles are positively charged

C) Most part of the atom is empty space

D) B- particles move with high velocity

76 / 100

Category: Chemistry Ch 12 Class 12

Which of the following will not undergo aldol condensation?

NUMS 2016
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Acetaldehyde

B) Propanaldehyde

C) Benzaldehyde

D) Trideuteroacetaldehyde

77 / 100

Category: Chemistry Ch 7 Class 12

Which is not a meta directing group:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) -NO2

B) -COOH

C) -NH2

D) -COR

78 / 100

Category: Chemistry Ch 7 Class 11

In those reactions where determination of enthalpy value is difficult by experiments, in such cases enthalpy value can be calculated by:

NTS 2014
Chemistry
Thermochemistry
Elimination Tool:

A) Hess's law

B) Henry's law

C) Kirchoff's law

D) Clapeyron equation ‘

79 / 100

Category: Chemistry Ch 10 Class 11

Current in electrolysis is carried through:

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

A) Free electrons

B) Positive Ions

C) Negative Ions

D) Both B and C

80 / 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

81 / 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
Elimination Tool:

A) Al2O3

B) Cl2O3

C) Na2O3

D) CaO

82 / 100

Category: Chemistry Ch 4 Class 11

Which one of the following has the highest lattice energy?

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

A) NaCl

B KCl

C) KBr

D) LiCl

83 / 100

Category: Chemistry Ch 2 Class 12

Li is an element of group?

II-A

Ill-A

I-A

IV-B

84 / 100

Category: Chemistry Ch 3 Class 11

If we take some water at 0oC and start heating it,we find that in the temperature range 0oC to 4oC:

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

A) It expands on heating

B) It contracts on heating

C) Both

D) None

85 / 100

Category: Chemistry Ch 3 Class 12

Orthoboric acid can NOT be obtained by which of the following?

Metaboricacid

Tetraboric acid

) Pyroboric acid

Boric anhydride

86 / 100

Category: Chemistry

Water has maximum density at:

NUMS Mock 2
Chemistry
States of Matter – Gases, Liquids and Solids

A) -4 C

B) – 1 C

C) 0 C

D) 4 C

87 / 100

Category: Chemistry Ch 11 Class 11

Metaboric acid when heated produces:

NTS 2016 DUHS & JSMU
Chemistry
Acids, Bases and Salts
Elimination Tool:

A) B2O3

B) HBO2

C) H2B4O7

D) H3BO3

88 / 100

Category: Chemistry Ch 11 Class 12

Methylated spirit Is % methanol and % ethanol:

5 and 95

20 and 80

60 and 40

50 and 50

89 / 100

Category: Chemistry Ch 10 Class 11

which one of the following Is the oxidation number of Iodine in I2?

None

90 / 100

Category: Chemistry

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

NUMS Mock 4
Atomic Structure

A) Chadwick,1895

B) Goldstein,1886

C) Rutherford,1885

D) J.Perrin,1885

91 / 100

Category: Chemistry Ch 3 Class 11

Pressure remaining constant, at which temperature volume of gas will become twice to the volume at 0 C?

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

A) 546 C

B) 200 C

C) 546 K

D) 273 K

92 / 100

Category: Chemistry Ch 4 Class 11

Vapor pressure depends on

Size of the container used to collect the gas

Current atmospheric pressure

Temperature of the liquid

d) Kind of gas that is being collected

93 / 100

Category: Chemistry Ch 2 Class 12

What is the chemical formula for plaster of Paris?

NTS 2010
Chemistry
s and p Block Elements
Elimination Tool:

A) CuSO4. 5H2O

B) 2CaSO4. 2H2O

C) (CaSO4)2 H2O

D) MgSO4. 7H2O

94 / 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:

A) It is a colorless, volatile, thin liquid with specific gravity 0.796 at 15°C

B) It is used for low-temperature thermometers and as a fuel substitute

C) It is extensively used in the formation of different beverages

D) It is used as a base for perfumes

95 / 100

Category: Chemistry Ch 3 Class 12

silicon can be obtained from which one of the following compounds

Water

Sand

Potash

None

96 / 100

Category: Chemistry

In alkanes, each carbon has hybridization

NUMS Mock 4
Chemistry
Fundamental Principles of Organic Chemistry

A) sp3

B) sp

C) sp2

D) dsp

97 / 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:

A) Ethanol

B) Phenol

C) Hexanol

D) Dimethyl ether

98 / 100

Category: Chemistry Ch 2 Class 11

If during crystallization more solute could not be dissolved in the solution, the solution is:

Saturated solution

Dilute solution

Concentrated solution

None of these

99 / 100

Category: Chemistry Ch 8 Class 12

Catalytic hydrogenation of alkenes exhibits:

PreMedPK MDCAT Mock 4
Chemistry
Hydrocarbons
Elimination Tool:

A) Substitution reaction

B) Elimination reaction

C) Addition reaction

D) Condensation reaction

100 / 100

Category: Chemistry

Which of the following has the least electron affinity value?

NUMS Mock 1
Chemistry
Periodicity in Elements

A) 12 C 6

B) 14 N 7

C) 16 8 7

D) 19F 9

Your score is

The average score is 57%

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 4 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