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.

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Chemistry Practice Test 5

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1 / 100

Category: Chemistry Ch 9 Class 12

n-Heptane can be converted into benzene by catalysts:

Al203, Si02, Fe203

Si02, K20, Cr203

Al203,Si02, Cr203

None of these

2 / 100

Category: Chemistry

Which is the correct electronic configuration of Chromium (24Cr)?

NUMS Mock 2
Chemistry
d and f Block Elements

A) 1s2, 2s2, 3s2, 2p6, 3p6, 4s2, 3d6

B) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d4

C) 1s1, 2s2, 2p6, 3s2, 3p6, 3d6

D) 1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d5

3 / 100

Category: Chemistry

Free Nitrogen and Oxygen are present in atmosphere but they do not react with each other under normal conditions because:

NUMS Mock 3
Chemistry

A) Nitrogen requires a catalyst

B) Oxygen is very inactive

C) Oxygen is found in less concentration

D) Nitrogen is highly inactive gas

4 / 100

Category: Chemistry Ch 1 Class 11

Find the mass in grams of 1.69 mol of phosphoric acid.

PMC 2021 Tested
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 165.6 g

B) 157 g

C) 148 g

D) 138 g

5 / 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

6 / 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

7 / 100

Category: Chemistry Ch 10 Class 12

Which one of the following is NOT a nucleophile?

NTS 2019
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) H2S

B) BF3

C) NH3

D) CN-

8 / 100

Category: Chemistry Ch 9 Class 12

All of the following react with KMnO4 except

NUMS 2017
Chemistry
Hydrocarbons
Elimination Tool:

A) Ethane

B) Ethyne

C) Ethylbenzene

D) Ethene

9 / 100

Category: Chemistry Ch 10 Class 11

Only those substances are written in Ion Electron Method:

PMC Sample 1
Chemistry
Electrochemistry
Elimination Tool:

A) Which are oxidizing

B) Which are reducing

C) Which are not taking part in reaction

D) Which will take part in reaction

10 / 100

Category: Chemistry Ch 6 Class 12

Which of the following doesn’t has an incomplete d-orbital?

All of these

11 / 100

Category: Chemistry

Q.29 Which one of them is used as an automobile anti free

A. Ethanol

B. ethene

C. ethylene glycol

D. propene

12 / 100

Category: Chemistry Ch 1 Class 12

P2O5 is Hygroscopic powder which sublimes at:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

A) 260 Degree Celsius

B) 360 Degree Celsius

C) 630 Degree Celsius

D) 690 Degree Celsius

13 / 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

14 / 100

Category: Chemistry Ch 13 Class 12

Which one will act as a strong acid?

UHS 2018
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Chloroethanoic acid

B) Ethanoic acid

C) Trichloroethanoic acid

D) Dichloroethanoic acid

15 / 100

Category: Chemistry Ch 4 Class 11

Molecular solids are different from others because they

Are formed by only non-polar molecules

Have low melting point

Have high conductivity

Have high density

16 / 100

Category: Chemistry Ch 3 Class 11

If the matter in a given system at a given condition is divided into two equal parts, then the value of the extensive properties will become:

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

A) Double of the original value

B) Half of the original value

C) Remain the same as the original value

D) One-fourth of the original value

17 / 100

Category: Chemistry Ch 14 Class 12

Which of following Is poison for catalyst:

Sulphur

Arsenic

Al203

Both a and b

18 / 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

19 / 100

Category: Chemistry Ch 11 Class 12

Which of following has “higher boiling”and “melting point”?

PreMedPK MDCAT Mock 5
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Acetone

B) 2 – Butanol

C) Propane

D) 2 – Methylpropene

20 / 100

Category: Chemistry Ch 2 Class 12

The lower part of the “Solvay tower” has been cooled during the manufacture of soda ash because:

NTS 2014
Chemistry
s and p Block Elements
Elimination Tool:

A) this facilitates the production of soda ash

B) it decreases the solubility of Na2CO3

C) this controls the flow of brine

D) it decreases the solubility of NaHCO3

21 / 100

Category: Chemistry

Which of the following has maximum Hydration power?

NUMS Mock 3
Chemistry
Chemical Bonding

A) Na+

B) K+

C) Be2+

D) Ca+2

22 / 100

Category: Chemistry Ch 9 Class 11

0.5 molar solution NaOH contains:

NUMS 2020
Chemistry
Solution and Colloids
Elimination Tool:

A) 40g NaOH in one dm3

B) 80g NaOH in one dm3

C) 10g NaOH in one dm3

D) 20g NaOH in one dm3

23 / 100

Category: Chemistry Ch 4 Class 11

Increasing the temperature of a liquid will decrease all except:

Surface tension

Density

Viscosity

Vapor pressure

24 / 100

Category: Chemistry

Hydrolysis accompanied by bond cleavage is called

Hydrogenation

Hydration

Partial hydration

Hydrogenolysis

25 / 100

Category: Chemistry Ch 9 Class 11

If 18.0 g of glucose is dissolved in 1 kg of water, boiling point of this solution should be:

UHS 2013
Chemistry
Solution and Colloids
Elimination Tool:

A) 100.52 °C

B) 100.00 °C

C) 100.052 °C

D) Less than 100 °C

26 / 100

Category: Chemistry Ch 15 Class 12

The unit ___ is commonly used by meteorologists

PMC Sample 3
Chemistry
Environmental Chemistry
Elimination Tool:

A) Bar

B) centibar

C) millibar

D) kilobar

27 / 100

Category: Chemistry Ch 4 Class 12

Formula of laughing gas is?

NH4

N20

NO3

28 / 100

Category: Chemistry Ch 3 Class 12

Aluminum silicate is used In:

Cement

Glass

Urea

None of these

29 / 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

30 / 100

Category: Chemistry Ch 12 Class 12

Simplest aromatic aldehyde has number of hydrogen atoms.

31 / 100

Category: Chemistry Ch 8 Class 12

IUPAC Nomenclature of:

CH3 – CH = CH – CH2 – CH = CH2 is:

NTS 2011
Chemistry
Hydrocarbons
Elimination Tool:

A) 2 – pentene

B) 1 , 4 – hexadiene

C) 3 – methyl butane

D) 1, 3, 5 – heptatriene

32 / 100

Category: Chemistry Ch 4 Class 12

H3PO3 is

Weak reducing agent

Strong reducing agent

Strong oxidizing agent

Weak oxidizing agent

33 / 100

Category: Chemistry Ch 3 Class 12

Aluminium is a

Insulator

Conductor

Semi-Conductor

Photo Conductor

34 / 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:

A) Beta Hydroxy carboxylic acids

B) Alpha hydroxy carboxylic acids

C) Carboxylic acids

D) Unsaturated acids

35 / 100

Category: Chemistry Ch 7 Class 12

Which class of compounds cannot show positional isomerism?

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

A) alkane

B) alkene

C) alkyne

D) alcohol

36 / 100

Category: Chemistry

Q.85 Along period of periodic table, shielding effect

A. Increases

B. Decreases

C. Remains constant

D. First increases then decrease

37 / 100

Category: Chemistry Ch 10 Class 11

The electrolyte used in fuel cell is:

NUMS 2019 Reconduct
Chemistry
Electrochemistry
Elimination Tool:

A) KOH

B) NaCl (aq)

C) NaNO3

D) Molten NaCl

38 / 100

Category: Chemistry Ch 6 Class 11

Geometry of SF6 is:

Octahedral

Hexagonal

Decahedral

Trigonal

39 / 100

Category: Chemistry Ch 7 Class 12

Which of the following is not an isomer of other three:

2,2-Dimethyl pentane

2-Methylhexane

2,3- Dimethyl pentane

2,2- Dimethyl butane

40 / 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

41 / 100

Category: Chemistry Ch 11 Class 11

The unit of rate of reaction is:

NTS 2011
Chemistry
Reaction Kinetics
Elimination Tool:

A) Mole (dm3) sec

B) Mole (dm3) sec-1

C) Mole(dm-3) sec -1

D) Mole(dm3)sec-2

42 / 100

Category: Chemistry Ch 8 Class 12

Unsaturated Compound containing double bond is:

Alkane

Alkene

Alkyne

Alkylene

43 / 100

Category: Chemistry Ch 8 Class 11

When the number of moles of reactants and products are equal in reversible reactions which parameter would not affect at equilibrium?

NUMS 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Temperature

B) Pressure

C) Volume

D) Catalyst

44 / 100

Category: Chemistry Ch 11 Class 11

Half-life of an element is 5 days. If we have 50,000 of its atoms, then how many atoms would be left after 10 days?

15000

25000

50000

None of these

45 / 100

Category: Chemistry Ch 13 Class 12

Carboxylic acids are formed by the hydrolysis of ________.

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

A) Ester & Nitriles

B) Nitriles & Amines

C) Alkenes & Alkynes

D) Esters & Alcohols

46 / 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

47 / 100

Category: Chemistry Ch 9 Class 12

Who rejected vital force theory

PMC Sample 3
Chemistry
Hydrocarbons
Elimination Tool:

A) Wohler

B) Berzelius

C) Wallus

D) Lyll

48 / 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:

A) a = b ≠ c ; α=β=γ=90

B) a ≠ b ≠ c ;α=γ=90 ; β≠90

C) a ≠ b = c ;α=β=90; γ≠90

D) a = b = c ;α=β=γ=90

49 / 100

Category: Chemistry Ch 1 Class 11

It is the fact that 22.414 cm3 of any gas has a different masses but the same number of

PMC Practice 27
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Atoms

B) Particles

C) Molecules

D) None of these

50 / 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

51 / 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

52 / 100

Category: Chemistry

Q.126 What is the coordination number of Pt in [PtCINO2)NH3)4]

A. 2

B. 4

C. 6

D. 7

53 / 100

Category: Chemistry Ch 8 Class 12

In which of the following C-C bond length is the minimum?

Alkane

Alkene

Benzene

Same length in all

54 / 100

Category: Chemistry Ch 8 Class 11

At equilibrium, which of the following reactions is not affected by pressure?

NUMS 2016
Chemistry
Chemical Equilibrium
Elimination Tool:

A) ½ N2(g) + ½ O2 (g)⇌ NO(g)

B) PCl5(g) ⇌ PCl3(g) + Cl2(g)

C) 2NO2 (g) ⇌ N2O4(g)

D) SO2Cl2(g) ⇌ SO2(g) + Cl2(g)

55 / 100

Category: Chemistry Ch 14 Class 12

Left-handed helix in proteins secondary structure is called as ______ :

PMC Practice 4
Chemistry
Macromolecules
Elimination Tool:

A) Alpha helix

B) Beta helix

C) Spiral

D) Concentrate

56 / 100

Category: Chemistry Ch 3 Class 11

According to the general gas equation, density of an ideal gas depends upon:

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

A) Pressure

B) Temperature

C) Molar Mass

D) All of these

57 / 100

Category: Chemistry Ch 14 Class 12

The polymer formed by the polymerization of vinyl acetate is:

NUMS 2019 Cancelled
Chemistry
Macromolecules
Elimination Tool:

A) Cross linked linear polymer

B) Co polymer

C) Homopolymer

D) Condensation polymer

58 / 100

Category: Chemistry

Q.25 In a pressure cooker, boiling point of water is_

A. Raised than the normal

B. Lower than the normal

C. Lower than the freezing point

D. All of these

59 / 100

Category: Chemistry Ch 5 Class 11

For a multi-electron atom, the highest energy level among the following is:

NTS 2013
Chemistry
Atomic Structure
Elimination Tool:

A) n = 5, l = 0, m = 0 , s = + ½

B) n= 4 , l = 0 , m = 0 , s = – ½

C) n= 3 , l = 1, m = 1 , s = – ½

D) n= 5 , l = 1 , m = 0 , s = + ½

60 / 100

Category: Chemistry Ch 11 Class 11

The colour of methyl orange in base is?

NTS 2015 SMBBMC
Chemistry
Acids, Bases and Salts
Elimination Tool:

A) Red

B) yellow

C) orange

D) pink

61 / 100

Category: Chemistry Ch 14 Class 12

Allotropes are of same?

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) Compounds

B) Molecules

C) Ions

D) Elements

62 / 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

63 / 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

64 / 100

Category: Chemistry Ch 2 Class 11

106 gram of Na2CO3 per dm3 of the solution of Na2CO3 in water, the concentration of the solution will be:

NTS 2018
Chemistry
Stoichiometry
Elimination Tool:

A) 1N

B) 0.1 M

C) 1M

D) 0.02M

65 / 100

Category: Chemistry Ch 9 Class 11

The number of moles of solute dissolved per liter of solution is called:

NTS 2012
Chemistry
Solution and Colloids
Elimination Tool:

A) Normality

B) Molality

C) Mole fraction

D) Molarity

66 / 100

Category: Chemistry Ch 5 Class 12

The reduction of which of the following produces Hydrofluoric acid?

a) XeF2

XeF4

Xe F6

All of the above

67 / 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

68 / 100

Category: Chemistry Ch 11 Class 12

) Melting point of methyl alcohol is:

-97 C

-89 C

-100 C

-23 C

69 / 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

70 / 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

71 / 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

72 / 100

Category: Chemistry Ch 4 Class 12

What are interstitial compounds?

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

A) Transition elements containing small proportion of H, B, C, N

B) Transition elements containing small proportion of He, Ne, Ar, Xe

C) The compounds in which transition elements are in their highest oxidation state.

D) The compounds of transition elements which are not stable.

73 / 100

Category: Chemistry

The process of depositing a thin layer of expensive metals on ordinary or expensive metals is called:

NUMS Mock 2
Chemistry
Electrochemistry

A) Electroplating

B) Conductivity

C) Galvanizing

D) Metallurgy

74 / 100

Category: Chemistry

Q.19 Graphite has a structural similarity with

A. B2H6

B. B4C

C.B

D. BN

75 / 100

Category: Chemistry Ch 8 Class 11

The solubility product of AgCl is 2.0×10-10 mol-2 dm-6. The maximum concentration of Ag+1 ions in the solution is:

NTS 2019
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 2.0×10-12 mol dm-3

B) 1.41x 10-5 mol dm-3

C) 1.0×10-12 mol dm-3

D) 2.5×10-10 mol dm-3

76 / 100

Category: Chemistry Ch 3 Class 11

The Unit cell with crystallographic dimensions a = b ≠c ,α = β = γ = 90 degrees is:

NTS 2015 DUHS and JSMU
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Cubic

B) Tetragonal

C) Monoclinic

D) Hexagonal

77 / 100

Category: Chemistry Ch 4 Class 11

Which one of the following has crystalline structure?

Diamond

Sugar

Boron Nitride

Lithium Carbide

All of these

78 / 100

Category: Chemistry Ch 11 Class 11

What is the effect of catalyst in a reaction?

Increases the rate of reaction

Decreases the rate of reaction

Keeps the rate constant

None of these

79 / 100

Category: Chemistry Ch 2 Class 12

Densities of alkali metals are low due to:

PMC 2020
Chemistry
s and p Block Elements
Elimination Tool:

A) Weak intermolecular forces

B) Large atomic volume

C) Smaller size

D) Ns1 configuration

80 / 100

Category: Chemistry Ch 10 Class 12

Which of the following is not a nucleophile?

NTS 2010
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) HO-

B) NH3

C) BF3

D) CN-

81 / 100

Category: Chemistry Ch 11 Class 11

Methyl orange is _______ in acidic solutions.

NTS 2018
Chemistry
Acids, Bases and Salts
Elimination Tool:

A) Yellow

B) Pink

C) Orange

D) Red

82 / 100

Category: Chemistry Ch 3 Class 11

1 atmospheric pressure is equal to

1kg/cm2

1.033 kg/cm2

1.1kg/cm2

1.133 kg/cm2

83 / 100

Category: Chemistry Ch 15 Class 12

Which of the following pollutant decolorize the skin?

ETEA 2019
Chemistry
Environmental Chemistry
Elimination Tool:

A) Mercury

B) Arsenic

C) Lead

D) Cadmium

84 / 100

Category: Chemistry Ch 2 Class 11

2 grams of H2 molecules contain ______ molecules.

NTS 2012
Chemistry
Stoichiometry
Elimination Tool:

A) 12.04 x 1023

B) 6.02 x 1023

C) 3.01 x 1023

D) 1.008

85 / 100

Category: Chemistry Ch 11 Class 11

For the reaction, A(g) -> products:

When the concentration of A(g) doubles, the rate of reaction increases four folds, which means it is:

PMC 2020
Chemistry
Reaction Kinetics
Elimination Tool:

A) Negative order reaction

B) First order reaction

C) Zero order reaction

D) Second order reaction

86 / 100

Category: Chemistry

For a sub shell I = 2 and m = -2, -1, 0 , +1, +2, it implies that it has ____ space orientation.

NUMS Mock 4
Chemistry
Atomic Structure

A) One

B) Two

C) Three

D) Five

87 / 100

Category: Chemistry Ch 11 Class 12

Ethers are very good:

Solvent

Oxidizing agen

Reducing agent

Dehydrating agent

88 / 100

Category: Chemistry

What type of chemical reaction is this?
CH3CHO + NH3 -> CH3CH(OH)NH2

NUMS Mock 3
Chemistry
Aldehydes and Ketones

A) Addition – elimination

B) Electrophilic addition

C) Free radical addition

D) Nucleophilic addition

89 / 100

Category: Chemistry Ch 4 Class 11

A fixed mass of an ideal gas is contained in a cylinder at constant temperature. Now, the pressure of the gas is decreased.

What happened to the molecules of gas?

PMC Practice 1
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Their mean square speed decreases

B) Number of collision between molecules and walls of container decreased

C) The force of attraction between them increase

D) Their size decreases

90 / 100

Category: Chemistry Ch 9 Class 12

Stability of benzene is due to

Alternate double bonds

Electrons' cloud

Double bonds

Delocalization of electrons

91 / 100

Category: Chemistry Ch 10 Class 12

Which alkyl halide has the lowest reactivity for a particular alkyl group?

NTS 2018
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) R-CI

B) R-F

C) R-Br

D) R-I

92 / 100

Category: Chemistry Ch 7 Class 11

The measurement of heat absorbed or given out in a chemical reaction is referred to as:

NTS 2011
Chemistry
Thermochemistry
Elimination Tool:

A) Enthalpy

B) Endothermic reaction

C) Exothermic reaction

D) Thermochemistry

93 / 100

Category: Chemistry Ch 3 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:

A) Hydrogen bonding

B) Dipole – dipole interaction

C) London forces

D) Both (a) and (b)

94 / 100

Category: Chemistry Ch 14 Class 12

Part of a polymer molecule has the following structure. -CH2 -CH2 -CH2 -CH2 -CH2 -CH2-

NUMS 2016
Chemistry
Macromolecules
Elimination Tool:

A) C2H4

B) C2H6

C) C3H6

D) C3H8

95 / 100

Category: Chemistry Ch 7 Class 11

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

NUMS 2014
Chemistry
Thermochemistry
Elimination Tool:

A) Pressure and work

B) Volume and pressure

C) Heat and work

D) Pressure and heat

96 / 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

97 / 100

Category: Chemistry Ch 8 Class 11

98 / 100

Category: Chemistry Ch 10 Class 12

Alcbhols react with aqueous acid to produce alkyl halides in presence of

ZnCl2

SO2

Pyridine

KOH

99 / 100

Category: Chemistry Ch 3 Class 12

Borax bead test is used to separate:

) Metallic cations

Non-metallic cations

Metallic anions

Non-metallic anions

100 / 100

Category: Chemistry Ch 14 Class 12

Disposable cups are made of a polymer ‘polystyrene’. Polystyrene is:

UHS 2019
Chemistry
Macromolecules
Elimination Tool:

A) A polyamide

B) A condensation polymer

C) An addition polymer

D) A polyester

Your score is

The average score is 55%

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