Chemistry Practice Tests 2 - PLS Academy

Chemistry Practice Test 2

Chemistry Practice Test 2 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 chemical kinetics, equilibrium, acids and bases, and thermochemistry, helping students improve accuracy and problem-solving skills.

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1 / 100

Category: Chemistry Ch 2 Class 12

Metals belonging to the same group in the periodic table are

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

A) Magnesium and Na

B) Magnesium and Copper

C) Magnesium and Barium

D) Magnesium and Potassium

2 / 100

Category: Chemistry Ch 2 Class 12

Which ions shall be removed to make hard water soft?

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

A) Ca+2and SO42-

B) Ca2+and Mg2+

C) SO42-and Cl-

D) HCO3-and SO42-

3 / 100

Category: Chemistry Ch 1 Class 11

An atom is composed of electrons, protons, neutrons and ___.

PMC Practice 22
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Hyperon

B) Neutrino

C) Anti-neutrino

D) All of these options are correct

4 / 100

Category: Chemistry Ch 15 Class 12

The temperature zones In rotary kilns are:

None of these

5 / 100

Category: Chemistry Ch 3 Class 11

When gases expand, this causes:

Cooling

Heating

Remain constant

None

6 / 100

Category: Chemistry Ch 13 Class 12

In IUPAC nomenclature, Carboxylic acids are named as_______?

PMC Sample 3
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Alkoxy acid

B) Alkanoic acid

C) Alkyl carboxylic acid

D) Alkoxylate acid

7 / 100

Category: Chemistry Ch 3 Class 12

Which one is not the type of Boric Acid?

Ortho boric Acid

Nano boric acid

Meta boric Acid

Pyro boric acid

8 / 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

9 / 100

Category: Chemistry Ch 10 Class 11

Zn can be deposited on iron by?

Galvanizing

Cathode Coating

Neutral suspension

All of these

10 / 100

Category: Chemistry Ch 9 Class 11

The aqueous solution of which of the following electrolyte will conduct electric current to large extent:

ETEA 2018
Chemistry
Solution and Colloids
Elimination Tool:

A) ??(??)2

B) ?2??3

C) N?4??

D) N?4?H

11 / 100

Category: Chemistry Ch 15 Class 12

Among the most common disaccharides, one of the following is present in the milk?

UHS 2014
Chemistry
Industrial Chemistry
Elimination Tool:

A) Sucrose

B) Maltose

C) Fructose

D) Lactose

12 / 100

Category: Chemistry

Down the group acid-base behaviour of metallic oxides of group 2 elements changes to:

NUMS Mock 2
Chemistry
s and p Block Elements

A) More basic

B) No change

C) Less basic

D) More acidic

13 / 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:

A) Cl2O7

B) Cl2O6

C) ClO2

D) ClO4

14 / 100

Category: Chemistry Ch 5 Class 11

The radius of the third Bohr orbit is:

NTS 2016 DUHS & JSMU
Chemistry
Atomic Structure
Elimination Tool:

A) 0.529 Å

B) 0.529 / 4 Å

C) 0.529 x 2 Å

D) 0.529 x 32 Å

15 / 100

Category: Chemistry Ch 13 Class 12

Acetic acid derived from the word ‘Acetum’ which means_______?

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

A) Acetic acid

B) Bitter

C) Citric

D) Vinegar

16 / 100

Category: Chemistry Ch 14 Class 12

Which of the following is not a part of the human diet?

Glucose

Sucrose

Fructose

Cellulose

17 / 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:

A) Translational motion

B) Vibrational motion

C) Rotational motion

D) Linear motion

18 / 100

Category: Chemistry Ch 15 Class 12

When hexane dioic acid is heated with hexamethylene diamine, the compound formed is:

UHS 2011
Chemistry
Industrial Chemistry
Elimination Tool:

A) Polypeptide

B) Addition polymer

C) Ester

D) Nylon 6,6

19 / 100

Category: Chemistry Ch 9 Class 11

As the number of solute particles increases, the freezing point of the solution:

UHS 2012
Chemistry
Solution and Colloids
Elimination Tool:

A) Remains the same

B) Increases

C) First increases, then decreases

D) Decreases

20 / 100

Category: Chemistry Ch 9 Class 12

Boiling point of benzene is:

70.3

80.1

133

79.41

21 / 100

Category: Chemistry Ch 12 Class 12

H —CHO is:

Formaldehyde

Acetaldehyde

Ketone

Ester

22 / 100

Category: Chemistry Ch 13 Class 12

Chemical formula of MaIonic Acid is?

C3H4O4

C4H4O4

C6H10O4

C5H10O4

23 / 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

24 / 100

Category: Chemistry Ch 3 Class 11

Real gases deviate significantly from ideal gas behavior at

Low temperature and high pressure

High temperature and low pressure

None of these

Noth a and b

25 / 100

Category: Chemistry

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

A. Propyne

B. Secondary alcohol

C. Ca Acetate

D. All of these

26 / 100

Category: Chemistry Ch 7 Class 12

In alkanes, each carbon has hybridization:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) sp3

B) sp

C) sp2

D) dsp

27 / 100

Category: Chemistry Ch 4 Class 11

if the crystal structure of Graphite is Hexagonal, the crystal system of Diamond will be:

Tetrahedral

Pyramidal

Cubic

Pentagonal

28 / 100

Category: Chemistry Ch 2 Class 12

Potassium, Rubidium, Cesium react with oxygen to form which types of oxides?

PMC 2020
Chemistry
s and p Block Elements
Elimination Tool:

A) Peroxide

B) Superoxide

C) Suboxide

D) Normal oxide

29 / 100

Category: Chemistry Ch 14 Class 12

Graphite has a structural similarity with:

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) B2H6

B) B4C

C) B

D) BN

30 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is not true about caustic soda? a) It causes painful burns c) It is manufactured by Costner—Kellner process e) Both b and d

) It causes painful burns

It is manufactured by Costner—Kellner process

Both b and d

b) It has purgative smell

d) It is used os on anti-acid

31 / 100

Category: Chemistry Ch 11 Class 12

Melting point of methyl alcohol is?

-97.6 'C

-37.6 'C

-64.7'C

-94.6'C

32 / 100

Category: Chemistry Ch 7 Class 11

Transfer of heat from hot surroundings to a cold refrigerator is an example of:

NUMS 2014
Chemistry
Thermochemistry
Elimination Tool:

A) Spontaneous reaction

B) Non-Spontaneous reaction

C) First law of thermodynamics

D) All of the above options are correct

33 / 100

Category: Chemistry

Q.125 Standard electrode Potential is denoted by

A. E

B. E-1

C. E0

D.d

34 / 100

Category: Chemistry Ch 5 Class 11

The amount of energy associated with quantum of radiation is directly proportional to:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

A) Photon

B) Wavelength

C) Frequency

D) Velocity

35 / 100

Category: Chemistry

The mass of proton is ______ times heavier than ______.

NUMS Mock 4
Chemistry
Atomic Structure

A) 1889, electrons

B) 1886, electrons

C) 1836, protons

D) 1836, electrons

36 / 100

Category: Chemistry Ch 4 Class 11

How many atmospheres correspond to 1050 torr?

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

A) 1.050

B) 10.38

C) 1.380

D) 2.760

37 / 100

Category: Chemistry Ch 12 Class 12

Identify the common name of the following compound:

CH₃CH₂COCH₂OH

PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Α-hydroxy-ethyl methyl aldehyde

B) Α-hydroxy-ethyl methyl ketone

C) Β-hydroxy-ethyl methyl ketone

D) Β-hydroxy-ethyl methyl ketone

38 / 100

Category: Chemistry Ch 14 Class 12

) Nylon 6 —6 Is obtained by heating adipic acid with:

Hexethylene Diamine

Hexmethylene Diamine

hexmethylene amine

hexdimethylene diamine

39 / 100

Category: Chemistry Ch 10 Class 12

Which of the following has the strongest bond?

NUMS 2019 Cancelled
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) CH3 – F

B) CH3 – I

C) CH3 – Cl

D) CH3 – Br

40 / 100

Category: Chemistry Ch 8 Class 12

Which among the following gives ppt. with terminal alkynyl hydrogen?

PreMedPK MDCAT Mock 4
Hydrocarbons
Elimination Tool:

A) Ammonical silver nitrate

B) Ammoniacal cuprous chloride

C) Both a and b

D) None of these

41 / 100

Category: Chemistry Ch 5 Class 11

Diameter of Hydrogen atom is?

105.8 x 10-2 A

1.061 A

0.55 A

131.3 x 10-2A

42 / 100

Category: Chemistry Ch 8 Class 11

If concentration of OH- Ions Is 0.1 molar. What Is the pH of the solution?

43 / 100

Category: Chemistry

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

NUMS Mock 4
Physics
Electrostatics

A) Its path is circular in a plane perpendicular to the plane of magnetic field

B) The speed and kinetic energy of the particle remains constant

C) The velocity and momentum of the particle changes only in direction

D) The time period of revolution and angular frequency of revolution is independent of the velocity of the particle and radius of the circular path

44 / 100

Category: Chemistry Ch 6 Class 12

Transition elements are colored in which type of compounds?

Ionic

Covalent

Both a and b

None of these

45 / 100

Category: Chemistry

Q.175 A compound has an empirical (simple) formula, C2lH20. If the experimental molecular weight is found to be in the range 16-17, the molecular formula of this compound is: (Atomic wt.: C= 12.1, H=1. 8, 0=16.)

A. C3H6O3

B .C4H4O2

C. C2H204

D. C6H6O3

46 / 100

Category: Chemistry Ch 4 Class 11

Carbon dioxide is an Example of?

PMC Practice 4
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Ionic Solid

B) Metallic Solid

C) Molecular Solid

D) Covalent Solid

47 / 100

Category: Chemistry Ch 1 Class 11

Actual yield is always experimental yield.

Less than

More than

Same as

None of the above

48 / 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.

49 / 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

50 / 100

Category: Chemistry Ch 3 Class 12

Burning of amorphous Boron in air forms

B(OH)3

B203

Mixture of B203& BN

51 / 100

Category: Chemistry Ch 4 Class 12

Which member of 5A group has no stable isotope?

Phosphorous

Bismuth

Nitrogen

Arsenic

52 / 100

Category: Chemistry Ch 1 Class 12

Triads were introduced by

Newland

Dobreiner

Mendeleev

Al-Razi

53 / 100

Category: Chemistry Ch 16 Class 12

Which of the following causes suffocation?

S02

CO2

Fog

All of these

54 / 100

Category: Chemistry Ch 9 Class 12

Friedel-Crafts Reaction can be used for the preparation of :

Toluene

Benzene

Phenol

pABA

55 / 100

Category: Chemistry Ch 10 Class 12

Which of the following bond has highest bond energy value?

PMC Sample 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) C-I

B) C-H

C) C-Cl

D) C-F

56 / 100

Category: Chemistry Ch 14 Class 12

Who introduced the concept of macromolecules?

PMC Practice 7
Chemistry
Macromolecules
Elimination Tool:

A) Runge

B) Maxwell

C) Staudinger

D) None of these

57 / 100

Category: Chemistry Ch 1 Class 11

The _____ study of composition of pure substance in 17th century clearly shows that few elements are components of many substances

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

A) qualitative

B) quantitative

C) both A & B

D) extensive

58 / 100

Category: Chemistry Ch 8 Class 11

If the value of Kc is large than the ratio (products)/(reactants), the reaction:

Is at equilibrium

Is not at equilibrium

The reaction moves in the forward direction

The direction will move in the reverse direction

59 / 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

60 / 100

Category: Chemistry Ch 12 Class 12

Tollen’s test is used for the detection of:

Aldehydes

Ketones

Carbonyl group

None of these

61 / 100

Category: Chemistry

Q.171 Which type of carboxylic acid is produced from the hydrolysis of nitriles?

A. Beta-hydroxy carboxylic acids

B. Acids having one carbon more than the starting material

C. Acids having one carbon less than the starting material

D. Alpha-hydroxy acids

62 / 100

Category: Chemistry Ch 5 Class 11

Which of the following does not have an inert gas configuration?

NUMS 2015
Chemistry
Atomic Structure
Elimination Tool:

A) Na+

B) Cu+

C) K+

D) S2-

63 / 100

Category: Chemistry Ch 5 Class 11

The atomic number Z of an atom represents the:

NTS 2018
Physics
Atomic Structure
Elimination Tool:

A) Number of protons

B) Number of electrons and protons

C) Number of neutrons

D) Sum of protons and neutrons

64 / 100

Category: Chemistry Ch 12 Class 12

Hybridization of carbon in -CHO group is:

NUMS 2019 Reconduct
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) sp

B) sp2

C) sp3

D) dsp

65 / 100

Category: Chemistry Ch 6 Class 11

Which of the following molecules has no net dipole moment?

NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:

A) HCI

B) H2O

C) CCl4

D) CH3Cl

66 / 100

Category: Chemistry Ch 9 Class 12

Benzene when reacted with chlorine in ultraviolet rays produces:

Hexacholorocyclohexane

P-dichlorobenzene

Benzotrichloride

Benzalchloride

67 / 100

Category: Chemistry Ch 6 Class 11

The bonds present in N2O5 are:

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) Only ionic

B) Covalent and coordinate

C) Only covalent

D) Covalent and ionic

68 / 100

Category: Chemistry

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

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives

A) Aromatic compounds

B) Alcohols

C) Carboxylic acid

D) Ethers

69 / 100

Category: Chemistry Ch 7 Class 11

Heat evolved or absorbed in a chemical reaction does not depend upon?

NTS 2016 SMBBMC
Chemistry
Thermochemistry
Elimination Tool:

A) Amount of reactants

B) Pressure of reaction

C) Physical state of reactants and products

D) Temperature

70 / 100

Category: Chemistry Ch 8 Class 11

Equilibrium constant has no units if?

The number moles are same on both sides of the chemical equation

The number of moles is different on both sides.

The number of moles is greater in the product

If the rate of reaction is constant

71 / 100

Category: Chemistry Ch 2 Class 12

Which alkaline earth metal make peroxide?

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

A) Ba

B) Be

C) Mg

D) Ca

72 / 100

Category: Chemistry

Q.145 Activator of phosphatase enzyme

A. Mn2+

B. Mg2-

C. Zn

D. None of these

73 / 100

Category: Chemistry Ch 5 Class 12

Which halogen is used as a refrigerant?

74 / 100

Category: Chemistry

Which carbohydrate Is soluble in water?

Cellulose

Starch

Amylase

Fructose

75 / 100

Category: Chemistry Ch 8 Class 12

When CH2 = CH2 reacts with a halogen acid, the product formed is:

Alkyl halide

Alkane

Alkyl

Allcene

76 / 100

Category: Chemistry Ch 8 Class 12

Electrophile in sulphonation of benzene is:

PMC 2020
Chemistry
Hydrocarbons
Elimination Tool:

A) HSO4-

B) H2SO4

C) SO3

D) HSO3

77 / 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

78 / 100

Category: Chemistry Ch 1 Class 12

Why transition metals have strong metallic bonding?

PMC Sample 1
Chemistry
Periodicity in Elements
Elimination Tool:

A) Because of high melting point

B) Because d-electrons of outer shell take part in bonding

C) Because s-electrons of outer shell take part in bonding

D) Both s and d electrons takes part in bonding

79 / 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:

A) Irreversible

B) Unidirectional

C) Multidirectional

D) Reversible

80 / 100

Category: Chemistry

Both ionic and covalent bonds are present in:

NUMS Mock 3
Chemistry
Chemical Bonding

A) CH4

B) SO2

C) KCl

D) NaOH

81 / 100

Category: Chemistry Ch 2 Class 12

The basic character of alkali metal oxides:

Decreases down the group

Remains same

Increases down the group

None of these

82 / 100

Category: Chemistry Ch 9 Class 12

Which of the following method is used to prepare Ethylene glycol from ethene?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Dehydration

B) Hydroxylation

C) Hydration

D) Luca's test

83 / 100

Category: Chemistry

Choose the correct statement:

NUMS Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids

A) Diamond is the hardest and graphite is softest

B) Graphite is the hardest while lamp black is softest

C) Coal is the hardest and coke is softest

D) Diamond is the hardest and coke is softest

84 / 100

Category: Chemistry

Q.133 Metals look shiny as light falls on metal surface collide with mobile electrons and make them these electron gives light when

A. Neutral. Excited

B. Excited, de-excited

C. De-excited, excited

D. None of these

85 / 100

Category: Chemistry Ch 11 Class 11

The rate of a gaseous reaction Is given by K [A] [B]. If the volume of the vessel containing these gases is reduced to 1/4th of the initial volume, the rate of reaction relative to the original rate would be:

NUMS 2016
Chemistry
Reaction Kinetics
Elimination Tool:

A) 16/1

B) 1/16

C) 4/1

D) 1/8

86 / 100

Category: Chemistry

The conversion of phenol to benzene in the presence of zinc involves:

NUMS Mock 3
Chemistry
Alcohol, Phenols, and Ethers

A) Oxidation

B) Reduction

C) Dehydroxylation

D) Dehydrogenation

87 / 100

Category: Chemistry

Q.16 Actual yield is always less than theoretical yield due to

A. Operational losses

B. reaction reversibility

C. side reaction

D. all of these

88 / 100

Category: Chemistry Ch 8 Class 12

H2 and Cl2 do not react in the dark, but in the presence of light a vigorous reaction is initiated due to the formation of:

NUMS 2016
Chemistry
Hydrocarbons
Elimination Tool:

A) Hydrogen free radical

B) Chlorine free radical

C) Hydrogen chloride molecule

D) Both hydrogen and chlorine free radicals

89 / 100

Category: Chemistry Ch 1 Class 12

Which one of the following is acidic?

B(OH)3

Ca(OH)2

Mg(OH)3

NaOH

90 / 100

Category: Chemistry Ch 2 Class 11

Slow cooling yields crystals of length?

Medium size

Small

Bigger

None of these

91 / 100

Category: Chemistry

Q.179 The nature of amorphous solid is

A. Isotropic

B. Anisotropic

C. Mesotrophic

D. Neotropic

92 / 100

Category: Chemistry Ch 9 Class 11

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

Molarity

Molality

Motality

Mole fraction

93 / 100

Category: Chemistry Ch 14 Class 12

……is a technique to separate impurities from chemical products:

NUMS 2014
Chemistry
Macromolecules
Elimination Tool:

A) Lands Berger's method

B) Fractional crystallization

C) Beckmann method

D) None

94 / 100

Category: Chemistry Ch 14 Class 12

Ethylene is a monomer of polyethylene that is widely used as raw material for manufacturing plastics. It can be polymerized into two different classes: HDPE and LDPE. The following choices are the differences of HDPE and LDPE except:

NUMS 2019 Cancelled
Chemistry
Macromolecules
Elimination Tool:

A) The density

B) The branching of ethylene

C) Reaction conditions

D) Type of polymerization

95 / 100

Category: Chemistry Ch 10 Class 12

Which catalyst is used in the preparation of alkyl halide from alcohols?

PMC Sample 2
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Zinc chloride

B) Pyridine

C) Sodium chloride

D) Thionyl chloride

96 / 100

Category: Chemistry Ch 3 Class 12

Which of the following is not an interstitial compound?

NTS 2014
Chemistry
d and f Block Elements
Elimination Tool:

A) Cu-Zn

B) Cu-Zn-Sn

C) TiH1.73

D) V2O5

97 / 100

Category: Chemistry Ch 10 Class 12

Grignard reagent when added to dry ice gives:

Primary Alcohol

Alkyl Halide

Tertiary Alcohol

Carboxylic Acid

98 / 100

Category: Chemistry Ch 1 Class 12

Borax exists in nature as:

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

A) Na2B4O7.10H2O

B) Na2B4O7.7H2O

C) Na2B4O7.5H2O

D) Na2B4O7.3H2O

99 / 100

Category: Chemistry Ch 2 Class 12

Sodium reacts with water more vigorously than lithium because it:

NTS 2010
Chemistry
s and p Block Elements
Elimination Tool:

A) Has a higher atomic weight

B) Is more electronegative

C) Is more electropositive

D) Is a metal

100 / 100

Category: Chemistry Ch 9 Class 12

How many chain isomers of Pentane is possible?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Two

B) Four

C) Three

D) Five

Your score is

The average score is 54%

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