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 7 Class 11

One Calorie is equivalent to:

NTS 2019
Chemistry
Thermochemistry
Elimination Tool:

A) 0.4184J

B) 41.84 J

C) 4.184 J

D) 418.4 J

2 / 100

Category: Chemistry Ch 5 Class 11

A 4s orbital has:

NUMS 2014
Chemistry
Atomic Structure
Elimination Tool:

A) One node

B) Two nodes

C) three nodes

D) O nodes

3 / 100

Category: Chemistry Ch 10 Class 11

During oxidation process, oxidation number of an element:

PMC 2020
Chemistry
Electrochemistry
Elimination Tool:

A) Decreases

B) Increases

C) Remains constant

D) Both decreases and increases

4 / 100

Category: Chemistry Ch 13 Class 12

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

NUMS 2019 Cancelled
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Aromatic compounds

B) Alcohols

C) Carboxylic acid

D) Ethers

5 / 100

Category: Chemistry Ch 10 Class 11

In Lead-Acid battery, product formed at anode during discharging is

PbSO4

SO2

SO4

6 / 100

Category: Chemistry Ch 4 Class 11

Which of the following is not a property of liquids:

No motion

Collision of molecules

Diffusion

All of these

7 / 100

Category: Chemistry Ch 2 Class 12

Hydrides which are prepared by passing hydrogen gas over hot alkali metals or alkaline earth metals are called:

NTS 2011
Chemistry
s and p Block Elements
Elimination Tool:

A) Covalent hydrides

B) Ionic hydrides

C) Complex hydrides

D) Metallic hydrides

8 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is correct general formula of aliphatic carboxylic acid ?

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

A) RCOOH

B) ArCOOH

C) PhCOOH

D) None of these

9 / 100

Category: Chemistry Ch 4 Class 11

When animals inhale air, oxygen will move into the lungs due to difference in partial pressure of oxygen in lungs and atmosphere. This obeys

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

A) Pascal's law

B) Dalton's law

C) Charles's law

D) Bohr's law

10 / 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

11 / 100

Category: Chemistry Ch 9 Class 11

Boiling point constants help us to determine:

UHS 2012
Chemistry
Solution and Colloids
Elimination Tool:

A) Molar masses

B) Volumes

C) Pressures

D) Masses

12 / 100

Category: Chemistry

Q.28 Fuels with higher octane number can be produce by_________?

A. Cracking

B. Reforming

C. Decomposition

D. Isomerisation

13 / 100

Category: Chemistry Ch 4 Class 12

Which one of the following elements has six valence electrons?

14 / 100

Category: Chemistry Ch 1 Class 11

0.5 mole of SO2 contains gram of oxygen?

None

15 / 100

Category: Chemistry Ch 8 Class 11

Concentration of reactants and products are expressed as Moles per unit _______.

PMC Sample 1
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Area

B) length

C) Volume

D) None of these

16 / 100

Category: Chemistry Ch 4 Class 11

London forces are present in

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

A) ammonia

B) water

C) kerosene oil

D) HCl

17 / 100

Category: Chemistry

Vinyl bromide can be prepared from:

Hydroxyl bromide

Ethylene dibromide

Vicinal brornida

All of these

18 / 100

Category: Chemistry

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

A. Alpha helix

B. Beta helix

C. Spiral

D. Coucentrate

19 / 100

Category: Chemistry Ch 9 Class 11

Human blood maintains its pH between

UHS 2016
Chemistry
Solution and Colloids
Elimination Tool:

A) 6.50 – 7.00

B) 7.20 – 7.25

C) 7.50 – 7.55

D) 7.35 – 7.40

20 / 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

21 / 100

Category: Chemistry Ch 14 Class 12

The polymer containing acrylonitrile as a monomer is:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Polyacrylonitrile

B) Rayon fibre

C) PVC

D) Teflon

22 / 100

Category: Chemistry Ch 7 Class 11

In chemistry the work is generally ___.

PMC Sample 1
Chemistry
Thermochemistry
Elimination Tool:

A) Done by Temperature change

B) Pressure – Temperature Work

C) Pressure Volume Work

D) None of these

23 / 100

Category: Chemistry Ch 1 Class 12

The binding energy of transition metal increases upto group:

NUMS 2020
Chemistry
Periodicity in Elements
Elimination Tool:

A) IIB

B) IVB

C) IIIB

D) VIB

24 / 100

Category: Chemistry Ch 1 Class 12

NaNO3 on heating gives:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

A) O2

B) NO2

C) O2 + NO2

D) NaNO2 + O2

25 / 100

Category: Chemistry Ch 4 Class 12

The shape of [Co(NH3)6]3+ complex is:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) Linear

B) Square planar

C) Tetrahedral

D) Octahedral

26 / 100

Category: Chemistry Ch 13 Class 12

An ester is prepared by the reaction of:

NTS 2011
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Two alcohols

B) Carboxylic acid and alcohol

C) Ketone and alcohol

D) Aldehyde and alcohol

27 / 100

Category: Chemistry Ch 3 Class 11

1 liter of a gas weighs 2 g at 300 K and 1 atm pressure. If the pressure is made 0.75 atm, at which of the following temperatures will 1 L of the same gas weigh 1 g?

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

A) 450 K

B) 800 K

C) 600 K

D) 900 K

28 / 100

Category: Chemistry Ch 14 Class 12

Teflon contains which of the following halide?

Chlorine

Bromine

Fluorine

All of these

29 / 100

Category: Chemistry Ch 4 Class 11

Loose electrons present in outer shell meansv

High melting point

High boiling point means:

High conductivity

None of these

30 / 100

Category: Chemistry Ch 7 Class 12

The coal used for domestic purposes is: –

Lignite

Anthracite

Bituminous

Sub bituminous

31 / 100

Category: Chemistry Ch 7 Class 11

Starting point of Kelvin scale is:

NUMS 2020
Chemistry
Thermochemistry
Elimination Tool:

A) 0 K

B) -400 K

C) -210 K

D) -273.15 K

32 / 100

Category: Chemistry Ch 11 Class 12

Methyl alcohol is used for production of

Dyes

Drugs

Perfumes

Antifreeze

33 / 100

Category: Chemistry Ch 3 Class 12

Aluminum silicate is used In:

Cement

Glass

Urea

None of these

34 / 100

Category: Chemistry Ch 4 Class 11

If electrons are loosely packed then:

The boiling point of solid Is high

The solid conducts electricity

They add to the solidity

The melting Point of solid is high

35 / 100

Category: Chemistry Ch 5 Class 11

The relationship between quantum number n and l is:

PMC 2020
Chemistry
Atomic Structure
Elimination Tool:

A) n = l – 1

B) l = n – 2

C) l = n – 1

D) n = l – 2

36 / 100

Category: Chemistry

Which one of the following reagents is used to distinguish between aldehydes and ketones?

NUMS Mock 1
Chemistry
Aldehydes and Ketones

A) Alkaline Iodine

B) Tollen’s Reagent

C) Bromine

D) 2, 4 DNPH

37 / 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

38 / 100

Category: Chemistry

Which of the following reagents will reduce butanoic acid to butanol?

NUMS Mock 1
Chemistry
Carboxylic Acids and its Derivatives

A) LiAlH4

B) LiAlH4.H2O

C) Mg(BH4)2

D) All of the above

39 / 100

Category: Chemistry Ch 7 Class 12

Which process is used to produce volatile compounds?

Reforming

Cracking

Polymerization

Distillation

40 / 100

Category: Chemistry Ch 6 Class 11

The number of bond(s) between carbon and nitrogen atoms in a Nitrile is:

NTS 2018
Chemistry
Chemical Bonding
Elimination Tool:

A) One sigma and one pi

B) Two sigma and one pi

C) Only sigma

D) One sigma and two pi

41 / 100

Category: Chemistry

Q.134 Why phenol is more acidic than Alcohol?

A. Due to presence oI resonance in phenol

B. Due to absence of resonance of in alcohol

C. Both A and B

D. Because in phenol His attach to O

42 / 100

Category: Chemistry

Q.136 SN reactions are favored by which of the following reactions?

A. Water

B. Benzene

C. Carbon Tetrachloride

D. Carbon disulphide

43 / 100

Category: Chemistry Ch 6 Class 11

Bond angle of Ethane is:

109.5

120

180

Different

44 / 100

Category: Chemistry Ch 7 Class 12

Which one of the following free radical is most stable:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) CH3*

B) (CH3)2CH*

C) (CH3)3C*

D) C2HS*

45 / 100

Category: Chemistry Ch 3 Class 11

The expression PV = nRT represents the:

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

A) Dalton’s Law

B) Avogadro’s Law

C) General gas equation

D) Van der Waals equation

46 / 100

Category: Chemistry Ch 4 Class 12

Which of the following is typical transition element?

PMC Practice 4
Chemistry
d and f Block Elements
Elimination Tool:

A) Zn

B) Cd

C) Cu

D) Hg

47 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is an example of aromatic carboxylic acid?

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

A) Ethanoic acid

B) Butanoic acid

C) Adipic acid

D) Phthalic acid

48 / 100

Category: Chemistry Ch 5 Class 11

Maximum ____ electrons can be placed in one orbital:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

A) 1

B) 2

C) 3

D) 4

49 / 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

50 / 100

Category: Chemistry Ch 2 Class 12

Identify the correct statement:

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

A) Element sodium can be prepared and isolated by electrolyzing an aqueous solution of NaCl

B) Elemental Na is a strong oxidizing agent

C) Elemental Na is insoluble in NH3

D) Elemental Na is easily oxidizing

51 / 100

Category: Chemistry Ch 3 Class 12

The oxidation states of Boron are:

+1,+2 and +3

-1, -2 and -3

+1 and -1

+3 and -3

52 / 100

Category: Chemistry Ch 6 Class 12

Which element does not show magnetic properties?

53 / 100

Category: Chemistry Ch 1 Class 11

How many molecules are there in 2.1 moles of CO₂:

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

A) 3.49 x 10⁻²⁴

B) 2.53 x 10²⁴

C) 1.26 x 10²⁴

D) 3.79 x 10²⁴

54 / 100

Category: Chemistry Ch 1 Class 12

Smallest element in the periodic table is?

Hydrogen

Fluorine

Lithium

Uranium

55 / 100

Category: Chemistry Ch 7 Class 11

Given the bond energy N ≡ N, N – H and H – H bonds are 945, 391, and 436 kJmol-1 respectively, the enthalpy of the reaction N2 (g) + 3H2(g) -> 2NH3 (g) is;

NUMS 2017
Chemistry
Thermochemistry
Elimination Tool:

A) -93 kJ

B) 102 kJ

C) 90 kJ

D) 105 kJ.

56 / 100

Category: Chemistry Ch 11 Class 11

The change in concentration of reactants or products per unit time is

PMC Sample 3
Chemistry
Reaction Kinetics
Elimination Tool:

A) rate constant

B) reaction speed

C) Rate of a reaction

D) All of these

57 / 100

Category: Chemistry Ch 12 Class 12

Tollen’s test is used for the detection of:

Aldehydes

Ketones

Carbonyl group

None of these

58 / 100

Category: Chemistry Ch 6 Class 11

Dipole moment of H2 is:

1.03

) 1.45

0.78

59 / 100

Category: Chemistry

Which of the following compounds possesses a single covalent bond between carbon and hydrogen?

NUMS Mock 4
Chemistry
Hydrocarbons

A) CH4

B) C2H2

C) C2H4

D) All of the above

60 / 100

Category: Chemistry Ch 6 Class 11

Silicon is found in nature in form of:

NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:

A) Isolated or free silicon

B) Sulphides

C) Silica or silicates

D) Only silicates

61 / 100

Category: Chemistry Ch 12 Class 12

Odour of formaldehyde Is:

Pungent

Aromatic

c) Pleasant

Obnoxious

62 / 100

Category: Chemistry Ch 13 Class 12

Fatty Acids are:

Aliphatic Monocarboxylic Acids

Obtained from sugars

Contain a suffix "al"

With low boiling point

63 / 100

Category: Chemistry

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

A. NaF

B. NaCl

C. NaBr

D. NaI

64 / 100

Category: Chemistry Ch 8 Class 11

The Kcunits for the reaction N2(g) + 3H2(g) -> 2NH3(g) are:

NUMS 2019 Reconduct
Chemistry
Chemical Equilibrium
Elimination Tool:

A) mol-1dm6

B) mol-2dm3

C) mol-2dm6

D) mol-1dm3

65 / 100

Category: Chemistry Ch 4 Class 11

The properties of liquid crystals are intermediate between crystals and:

PMC Practice 3
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Anisotropic liquids

B) Nematic liquids

C) Isotropic liquids

D) Liquids

66 / 100

Category: Chemistry Ch 4 Class 11

The rate of diffusion of hydrogen gas as compared to that of oxygen gas is:

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

A) 6 times

B) 4 times

C) one fourth

D) one eighth

67 / 100

Category: Chemistry Ch 12 Class 12

Why is water added after the reduction process of aldehyde and ketone with LiAlH4?

NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Because water reacts violently with LiAlH4

B) Because water will protonate LiAlH4

C) Because water inhibits the process

D) Because it will result to alkenes

68 / 100

Category: Chemistry Ch 2 Class 11

The efficiency of chemical reaction can be expressed as:

PMC 2020
Chemistry
Stoichiometry
Elimination Tool:

A) Theoretical yield

B) Actual yield

C) % yield

D) Maximum yield

69 / 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

70 / 100

Category: Chemistry

Q.148 Acetaldehyde undergoes polymerization with conc.HasO and form?

A. Acetylides

B. Paraldehyde

C. Bakelite

D. Meta Acetaldehyde

71 / 100

Category: Chemistry

In contact process, to which substance adequate quantities of water is added to convert it to sulphuric acid?

NUMS Mock 1
Chemistry
Chemical Equilibrium

A) H2S2O7

B) HSO4-

C) SO3

D) S

72 / 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

73 / 100

Category: Chemistry Ch 14 Class 12

What is the chemical reaction mechanism by which cells make polymers from monomers?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) Dehydration reaction

B) Formation of disulphide bridges

C) Ionic bonding of monomers

D) Hydrolysis

74 / 100

Category: Chemistry

Q.7 Which of the following forces have no relation with valence electrons?

A. Ionic Bond

B. Chemical bond

C. Intermolecular forces

D. Intramolecular forces

75 / 100

Category: Chemistry Ch 9 Class 12

The unhybridized p orbitals of benzene are present in the form of _________.

PMC Practice 2
Chemistry
Hydrocarbons
Elimination Tool:

A) Between the C-C bonds of benzene

B) Above and below the carbon bonds

C) In the form of a cloud above and below the benzene ring

D) None of these options is correct

76 / 100

Category: Chemistry Ch 13 Class 12

Carboxylic acids can be reduced to corresponding alcohols. Which of the following reagent can be used for this purpose?

UHS 2019
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) KMnO4

B) LiAlH4

C) K2Cr2O4

D) H2SO4

77 / 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

78 / 100

Category: Chemistry Ch 10 Class 12

All amino acids contain the functional group:

NTS 2017
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) NH2

B) CO2

C) S2-

D) Both A and B

79 / 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

80 / 100

Category: Chemistry Ch 10 Class 11

The process in which electric current is used to carry out a non-spontaneous redox reaction is called:

NUMS 2018
Chemistry
Electrochemistry
Elimination Tool:

A) Electrolyte

B) Metallic conductor

C) Electrolysis

D) None of the above

81 / 100

Category: Chemistry

Which statement is true about electron affinity?

NUMS Mock 2
Chemistry
Periodicity in Elements
Chemical Bonding

A) The value of electron affinity is always positive

B) The value of electron affinity is always negative

C) The value of first electron affinity is always positive

D) The value of first electron affinity is always negative

82 / 100

Category: Chemistry Ch 1 Class 11

If 9.8 g of sulfuric acid is dissolved in excess quantity of water, it will yield ____ moles of hydrogen ion (H+) and _____ moles of sulphate ions (SO42-).

PMC Practice 7
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 0.1, 0.2

B) 0.1, 0.3

C) 0.2, 0.4

D) 0.2, 0.1

83 / 100

Category: Chemistry Ch 6 Class 11

Structure of ammonia is:

Linear

AB4 (bent or angular)

AB3 (Trigonal)

AB4 (Trigonal pyramidal)

84 / 100

Category: Chemistry Ch 1 Class 12

Which of the following statements about H2S is false?

NTS 2017
Chemistry
Periodicity in Elements
Elimination Tool:

A) It is a covalent compound

B) It is a gas with bad smell

C) It is a stronger reducing agent than H2O

D) It is a weak base in water

85 / 100

Category: Chemistry Ch 8 Class 11

1 mole of N2O4 (g) was placed in an empty 1 dm^3 container and allowed to reach equilibrium according to the following equation:

N2O4(g) 2NO2(g)

At equilibrium, x mole Of N2O4 (g) had dissociated. What is the value of the equilibrium constant, Kc, at the temperature of the Experiment?

NTS 2016 SMBBMC
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 2x / ( 1 – x)

B) 4×2 / (1 – x)2

C) 2x / (1 – x )2

D) 4×2 / (1 – x)

86 / 100

Category: Chemistry Ch 1 Class 11

How many moles of S02 contain 16 grams of oxygen?

0.5

2.4

87 / 100

Category: Chemistry Ch 4 Class 12

Which one of the following does not have allotropes?

88 / 100

Category: Chemistry Ch 16 Class 12

Which of the following is a water cleaning halogen?

89 / 100

Category: Chemistry

IUPAC name of C6H5-CH2-CH2-NH2 is:

NUMS Mock 4
Chemistry
Fundamental Principles of Organic Chemistry

A) 2-phenyl ethenamine

B) 2-phenyl ethanamine

C) 2-phenyl ethylamine

D) 3-phenyl ethanamine

90 / 100

Category: Chemistry Ch 5 Class 11

Which of the following statements is correct?

NTS 2011
Chemistry
Atomic Structure
Elimination Tool:

A) Faraday's experiment indicates the existence of electrons

B) Crookes tube experiment shows the presence of electrons and protons in the atoms

C) Radioactivity confirms the presence of electrons and protons

D) Chadwick experiment shows the presence of neutrons

E) All of these

91 / 100

Category: Chemistry Ch 2 Class 11

A residue is obtained In which of the following methods?

Crystallization

Filtration

Condensation

Decantation

92 / 100

Category: Chemistry Ch 11 Class 12

By fermentation process of starch and by the catalytic enzyme, ______ is produced.

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Methyl alcohol

B) Ethyl alcohol

C) Acetyl alcohol

D) Methanal

93 / 100

Category: Chemistry

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

A. Butane

B. Propane

C. Pentane

D. Hexane

94 / 100

Category: Chemistry Ch 7 Class 11

ΔH = ΔE + PΔV is the change in enthalpy at constant ________.

NUMS 2018
Chemistry
Thermochemistry
Elimination Tool:

A) Volume

B) Pressure

C) Temperature

D) Mass

95 / 100

Category: Chemistry Ch 8 Class 11

If the value of ‘Kc’ is very large then, it shows that ______ completed.

NUMS 2018
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Forward reaction

B) Reverse reaction

C) Equilibrium is maintained

D) Kcis moderate

96 / 100

Category: Chemistry Ch 3 Class 11

Statement of Graham’s Law is

The rate of diffusion is directly proportional to the square root of its density

The rate of diffusion is inversely proportional to the square of its density

The rate of diffusion is inversely proportional to its density.

The rate of diffusion is inversely proportional to the square root of its density

97 / 100

Category: Chemistry Ch 9 Class 12

Which of the following compounds will form a hydrocarbon on reaction with Grignard reagent?

NUMS 2014
Chemistry
Hydrocarbons
Elimination Tool:

A) CH3CH2OH

B) CH3COOCH3

C) CH3COCH3

D) CH3CHO

98 / 100

Category: Chemistry Ch 8 Class 12

Percentage of butane in Sui gas is?

NTS 2015 SMBBMC
Biology
Hydrocarbons
Elimination Tool:

B) 3.88 %

C) 1.05 %

D) 0.02%

E) 0.17 %

99 / 100

Category: Chemistry Ch 4 Class 12

The ligand field effect splits five degenerate d-orbitals into two sets with different energies, the pair of high energy degenerate orbitals is:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) dxy, dyz

B) dyz, dzx

C) dx2 ,d

D) dx2 – y2, dy2

100 / 100

Category: Chemistry Ch 8 Class 12

The electrophilic reactions of Benzene are:

NTS 2011
Chemistry
Hydrocarbons
Elimination Tool:

A) Halogenation

B) Nitration

C) Sulphonation

D) Alkylation and Acylation

E) All of these

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The average score is 55%

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