Chemistry Practice Tests 5

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NET Practice

Chemistry Practice Test 5

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1 / 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

2 / 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

3 / 100

Category: Chemistry

Iso-Butyl alcohol has following carbon attached to hydroxyl group:

NUMS Mock 3
Chemistry
Alcohol, Phenols, and Ethers

A) Tertiary

B) Secondary

C) Quaternary

D) Primary

4 / 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

5 / 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

6 / 100

Category: Chemistry Ch 2 Class 12

Which of the following statements about H2S is false:

NTS 2010
Chemistry
s and p Block Elements
Elimination Tool:

B) It is a gas with a bad smell

C) It is a strong reducing agent

D) It is a molecule which is non linear

E) It is a weak base in water

7 / 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

8 / 100

Category: Chemistry Ch 3 Class 11

The value of S.T.P for 1 mole of any ideal gas is:

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

A) 273.16 K and 1 atm

B) 0 C & 1 mm Hg

C) 273 16 C & 1 atm

D) 0 K & 1 atm

9 / 100

Category: Chemistry Ch 9 Class 12

Hydrocarbons which burn with a smoky flame are called:

NUMS 2015
Chemistry
Hydrocarbons
Elimination Tool:

A) Aliphatic

B) Aromatic

C) Alicyclic

D) None of these

10 / 100

Category: Chemistry

Q.36 How will the conditions be changed to prevent the volume of the given gas from expanding when its mass is increased

A. Temperature and pressure increased

B. Temperature is lowered and pressure decreased

C. Temperature and pressure increasediiiiiiiiii

D. Temperature is lowered and pressure increased

11 / 100

Category: Chemistry Ch 2 Class 12

Commercial hydrogen is obtained from:

NTS 2015 DUHS and JSMU
Chemistry
s and p Block Elements
Elimination Tool:

A) coal gas

B) oil gas

C) marsh gas

D) producer gas

12 / 100

Category: Chemistry Ch 5 Class 11

Which of the following fundamental particles have the same mass/kg?

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

A) Electron, neutrino

B) Electron, proton

C) Proton, neutrino

D) Neutron, proton

13 / 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

14 / 100

Category: Chemistry

Q.5 The smallest part of the crystal lattice has all the properties of the entire Crystals, this is called

A. unit

B. unit cell

C. unit crystal

D. all of these

15 / 100

Category: Chemistry Ch 13 Class 12

What happens if we react a carboxylic acid with an acyl chloride?

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

A) It forms an acid anhydride

B) It forms an acyl halide

C) It does not react due to resonance

D) It does not react due to bad leaving group

16 / 100

Category: Chemistry

Q.166 Which of the species has a permanent dipole moment?

A. SF4

B. SiF4

C. BF3

D. XeF4

17 / 100

Category: Chemistry Ch 7 Class 12

The coal used for domestic purposes is: –

Lignite

Anthracite

Bituminous

Sub bituminous

18 / 100

Category: Chemistry

When fused PbBr2 is electrolyzed:

NUMS Mock 4
Chemistry
Electrochemistry

A) Bromine appears at the cathode

B) Lead is deposited at the cathode

C) Lead appears at the anode

D) None of the given options

19 / 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)

20 / 100

Category: Chemistry Ch 14 Class 12

Which is the structure of polyvinyl chloride (polychloroethane)?

UHS 2018
Chemistry
Macromolecules
Elimination Tool:

A) -[CCl2-CCl2]-

B) -[HCCl-CH-Cl]-

C) [H2C=CH-Cl]

D) -[H2C-CH-Cl]-

21 / 100

Category: Chemistry Ch 3 Class 12

Which of the following is used to make container for nitric acid?

iron

Plastic

Alumuium

Helim

22 / 100

Category: Chemistry Ch 11 Class 12

2-methyl 2-propanol is:

Secondary butyl alcohol

Tertiary butyl alcohol

Primary butyl alcohol

Quaternary butyl alcohol

23 / 100

Category: Chemistry

The number of amino acids found in proteins that a human body can synthesize is:

NUMS Mock 1
Chemistry
Macromolecules

A) 12

B) 10

C) 5

D) 14

24 / 100

Category: Chemistry Ch 12 Class 12

Meta-formaldehyde molecule has Oxygen MOMS:

One

Two

Three

Five

25 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following pollutants can cause death of a person by binding with
haemoglobin of red blood cells?

UHS 2014
Chemistry
Environmental Chemistry
Elimination Tool:

A) Chlorofluorocarbons

B) Oxides of Sulphur

C) Carbon monoxide

D) Oxides of nitrogen

26 / 100

Category: Chemistry Ch 14 Class 12

How many types of polymers are there based on their natures?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) 5

B) 4

C) 2

D) 3

27 / 100

Category: Chemistry Ch 11 Class 12

Dehydration of ethanol at 100 oC in the presence of concentrated H2SO4 gives:

NUMS 2019 Reconduct
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Ethene

B) Ethane

C) Ethyne

D) Ether

28 / 100

Category: Chemistry Ch 12 Class 12

Simplest aromatic aldehyde has number of hydrogen atoms.

5

6

7

8

29 / 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

30 / 100

Category: Chemistry

Reaction mechanism of alkanes with halogens is known as;

NUMS Mock 3
Chemistry
Alkyl Halides and Amines

A) Propagation

B) Free radical substitution

C) Addition

D) Elimination

31 / 100

Category: Chemistry

Which of the following has the correct order in terms of increasing acidity?

NUMS Mock 1
Chemistry
Acids, Bases and Salts

A) HI < HBr < HCl < HF

B) CH4< NH3< H2O < HF

C) Both of the above options

D) Cannot be determined

32 / 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

33 / 100

Category: Chemistry

Q.153 The properties of liquid crystals are intermediate b/w crystals and

A. Anisotropic liquids

B. Nematic liquids

C Isotropic liquids

D. Liquids

34 / 100

Category: Chemistry Ch 12 Class 12

– ROR is the nucleophile of

NTS 2011
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Alcohols

B) Esters

C) Cyanides

D) Ethers

35 / 100

Category: Chemistry Ch 12 Class 12

Treatment of propionaldehyde with Dil. the NaOH solution gives:

NUMS 2016
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) CH3 CH2COOCH2C2H5

B) CH3 CH2 CHOH CH2 CH2 CHO

C) CH3 CH2 CH (OH) CH(CH3) CHO

D) CH3 CH2 COCH2 CH2 CHO

36 / 100

Category: Chemistry Ch 4 Class 12

Copper reacts with hot concentrated H2SO4 in presence of

Air

Water

Ammonia

Strong heat

37 / 100

Category: Chemistry Ch 1 Class 12

Covalent character of hydrides decrease ________?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

A) Down the Group

B) Along period

C) Along d- block

D) All of these

38 / 100

Category: Chemistry Ch 15 Class 12

Percentage of nitrogen by volume in air is:

UHS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

A) 78%

B) 50%

C) 20%

D) 98%

39 / 100

Category: Chemistry Ch 4 Class 12

Copper is a typical transition metal. Its atomic number is 29. In which oxidation state does it have a partially filled orbital in d-subshell?

UHS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) Cu

B) Cu+

C) Cu-

D) Cu2+

40 / 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

41 / 100

Category: Chemistry Ch 13 Class 12

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

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

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

42 / 100

Category: Chemistry Ch 4 Class 12

In rhombic sulphur there are atoms in each molecule?

7

8

6

9

43 / 100

Category: Chemistry Ch 11 Class 11

A catalyst:

NTS 2016 DUHS & JSMU
Chemistry
Reaction Kinetics
Elimination Tool:

A) Increases the rate of forward reaction

B) Increases the rate of both forward and reverse reaction

C) Changes equilibrium position

D) Increases the rate of reverse reaction

44 / 100

Category: Chemistry

Q.111 Which one is primary alkyl halide?

A. Iso-propyl chloride

B. 2-Chloro-2-methyl propane

C. Neo-pentyl chloride

D. Chloroform

45 / 100

Category: Chemistry Ch 11 Class 11

What is the order of the following reaction:

2NO +O2 -> 2NO2

NTS 2019
Chemistry
Reaction Kinetics
Elimination Tool:

A) 0

B) 1

C) 2

D) 3

46 / 100

Category: Chemistry Ch 2 Class 12

Melting point of Group I-A elements is than Group II-A elements

Higher

lower

Same

Varies

47 / 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

48 / 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

49 / 100

Category: Chemistry Ch 11 Class 12

The classification of monohydric alcohols is due to

PMC Sample 3
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) hydrogen atom

B) carbon atom

C) hydroxyl group

D) carbonyle group

50 / 100

Category: Chemistry Ch 13 Class 12

Which of the following carboxylic acids will be the most acidic?

NUMS 2016
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) CH3CHClCH2COOH

B) CH3CH2CCl2COOH

C) CH3CH2CHClCOOH

D) CH3CH2CH2COOH

51 / 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

52 / 100

Category: Chemistry Ch 2 Class 12

Group 1A and 11A are known as: ) s block elements d) P block elements

Alkali

Alkaline earth

) s block elements

P block elements

53 / 100

Category: Chemistry Ch 4 Class 11

The value of R (the gas constant) is

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

A) 0.0821dm3 atm k mol-1.

B) 803143 Nmk-Imole

C) 0.0821 dm3 atm k-I mol-1

D) 8.3143 dm3 atm-k-I mol

54 / 100

Category: Chemistry Ch 10 Class 11

Conversion of Electrical energy into chemical energy is

PMC Sample 2
Chemistry
Electrochemistry
Elimination Tool:

A) Mechanical Energy

B) Electromechanical Energy

C) Electrochemistry

D) Chemical Energy

55 / 100

Category: Chemistry Ch 10 Class 12

NH3 (amine) is an example of:

NTS 2015 DUHS and JSMU
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Negative ligand

B) Anionic ligand

C) Neutral ligand

D) Organic ligand

56 / 100

Category: Chemistry

Identify the correct statement:

NUMS Mock 3
Chemistry
s and p Block Elements

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

57 / 100

Category: Chemistry Ch 9 Class 11

The pH of a solution can be kept constant by:

2022 PMC Test 2
Chemistry
Solution and Colloids
Elimination Tool:

A) saturated solution

B) super saturated solution

C) buffer solution

D) dilute solution

58 / 100

Category: Chemistry Ch 2 Class 12

Which property of the Group II elements (magnesium to barium) and their compounds increases with an increasing proton (atomic) number?

NUMS 2016
Chemistry
s and p Block Elements
Elimination Tool:

A) The magnitude of the enthalpy change of hydration of the metal ion

B) The pH of the aqueous chloride

C) The solubility of the sulphate in water

D) The stability of the carbonate to heat

59 / 100

Category: Chemistry Ch 6 Class 11

The number of sigma and pi bonds in 1-butene-3-yne?

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) 5 sigma and 5 pi

B) 7 sigma and 3 pi

C) 8 sigma and 2 pi

D) 6 sigma and 4 pi

60 / 100

Category: Chemistry Ch 10 Class 11

If we move down the electrochemical series:

NUMS 2014
Chemistry
Electrochemistry
Elimination Tool:

A) Reduction potential will increase

B) Reduction potential will decrease

C) Oxidizing ability increase

D) None of them

61 / 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

62 / 100

Category: Chemistry

Q.33 Rate constant is denoted by?

A. k

B. kr

C. kv

D.ks

63 / 100

Category: Chemistry Ch 5 Class 11

Which orbitals always possess same energy:

Hybrid orbitals

Degenerate orbitals

None of these

Both a and b

64 / 100

Category: Chemistry Ch 9 Class 11

The solubility product for BaSO4 , at 18-25°C is:

NTS 2015 DUHS and JSMU
Chemistry
Solution and Colloids
Elimination Tool:

A) 1.0 x 10-10mol2dm-6

B) 8.7 x 10-36mol2dm-6

C) 1.8 x 10-21mol2dm-6

D) 8.4 x 10-28mol2dm-6

65 / 100

Category: Chemistry Ch 12 Class 12

Which of the following can be oxidized to an aldehyde?

NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) 2-Ethanoic acid

B) 2-Ethanoate

C) Diethyl ether

D) Ethanol

66 / 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

67 / 100

Category: Chemistry Ch 11 Class 12

How are carboxylic acids formed from alcohol?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Hydrolysis

B) Reduction

C) Oxidation

D) Protonation

68 / 100

Category: Chemistry

Which one of the following organic compounds have the least carbon-carbon bond length?

NUMS Mock 4
Chemistry
Hydrocarbons

A) Ethene

B) Ethane

C) Ethyne

D) Methane

69 / 100

Category: Chemistry Ch 9 Class 12

The bond angles in benzene ring are:

PMC Sample 1
Chemistry
Hydrocarbons
Elimination Tool:

A) 90˚

B) 60˚

C) 120˚

D) 180˚

70 / 100

Category: Chemistry Ch 8 Class 12

How many sigma groups are there in benzene?

NTS 2014
Chemistry
Hydrocarbons
Elimination Tool:

A) 3

B) 6

C) 9

D) 12

71 / 100

Category: Chemistry Ch 8 Class 12

The major source of unburnt hydrocarbons in the atmosphere is / are:

NUMS 2016
Chemistry
Hydrocarbons
Elimination Tool:

A) Petroleum

B) Natural gas

C) Automobiles

D) Human beings

72 / 100

Category: Chemistry Ch 13 Class 12

The reaction CHCH + H2O + 3(O) shows the formation of ________.

NUMS 2018
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Acetic acid

B) Picric acid

C) Oxalic acid

D) Formic acid

73 / 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 ____ mole of sulphate ions (SO4-2).

PMC Practice 26
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

74 / 100

Category: Chemistry

Aromatic compounds burn with a sooty flame because:

NUMS Mock 3
Chemistry
Fundamental Principles of Organic Chemistry

A) They are resistant to react with oxygen

B) They have a cyclic structure

C) They have a high percentage of Carbon

D) They have a high percentage of hydrogen

75 / 100

Category: Chemistry

Q.122 Glycoprotein is classified as

A. Simple protein

B. Conjugated protein

C. Derived protein

D. Non-conjugated protein

76 / 100

Category: Chemistry Ch 3 Class 12

Chromium dissolves in dilute H2SO4 for [Cr(H2O)6]2. The colour of the ion is:

NUMS 2016
Chemistry
d and f Block Elements
Elimination Tool:

A) Blue

B) Yellow

C) Brown

D) Pink

77 / 100

Category: Chemistry Ch 3 Class 12

Electronic configuration of chromium (Proton number 24) is:

PMC 2020
Chemistry
d and f Block Elements
Elimination Tool:

A) [Ar] 3d4 4s2

B) [Ar] 3d5 4s2

C) [Ar] 3d5 4s1

D) [Ar] 3d5 4s2

78 / 100

Category: Chemistry

Q.89 Iftwo substituents are present at 1,4 positions then the isomer is called As____________?

A. Ortho

B. Meta

C.Para

D.None of these

79 / 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

80 / 100

Category: Chemistry Ch 13 Class 12

Which of the following reagent is required for preparation of acyl chloride (CH3COCl) from ethanoic aicd?

UHS 2019
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) PCl5

B) POCl3

C) CH3Cl

D) HCl

81 / 100

Category: Chemistry Ch 5 Class 11

Nitrogen and phosphorus have 3 of their valence electrons unpaired because of:

NTS 2014
Chemistry
Atomic Structure
Elimination Tool:

A) Auf bau principle

B) Heisenberg's principle

C) Hund’s rule

D) Planck’s statement

82 / 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

83 / 100

Category: Chemistry Ch 7 Class 12

The type of isomerism existing in a compound of molecular formula C2H6O is:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Functional group

B) Position

C) Chain

D) Metamerism

84 / 100

Category: Chemistry Ch 4 Class 12

The geometry of the complex compounds usually depends upon:

PMC 2021 Tested
Chemistry
d and f Block Elements
Elimination Tool:

A) All of the given choices

B) Hybridization of central metal

C) Type of ligands

D) Types of hybridization in the elements of ligands

85 / 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

86 / 100

Category: Chemistry Ch 14 Class 12

Which of the following fertilizers has the maximum percentage of nitrogen in solid state?

NUMS 2016
Chemistry
Macromolecules
Elimination Tool:

A) Ammonia

B) Urea

C) Di ammonium hydrogen phosphate

D) Ammonium nitrate

87 / 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

88 / 100

Category: Chemistry

Q.93 Which element has electronic configuration of [Ar]4s1, 3d5

A. Cu

B. Zn

C. Cr

D. V

89 / 100

Category: Chemistry Ch 6 Class 11

Electronegativity is defined as the power of an atom in a molecule to

Repel electrons towards itself

Attract electrons towards itself

Expand itself

All of the above

90 / 100

Category: Chemistry

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

A. Cracking

B. Reforming

C. Decomposition

D. Isomerisation

91 / 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

92 / 100

Category: Chemistry Ch 1 Class 12

Hydrogen resembles the elements of groups:

NTS 2019
Chemistry
Periodicity in Elements
Elimination Tool:

A) I-A, V-A and VIll-A

B) I-A, IV A and Vl-A

C) I-A, II-A and VIl-A

D) I-A, IV-A and VIl-A

93 / 100

Category: Chemistry Ch 16 Class 12

Which of the following causes suffocation?

S02

CO2

Fog

All of these

94 / 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

95 / 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

96 / 100

Category: Chemistry Ch 14 Class 12

Monomers of Nylon 6,6 Is/are:

Caprolactam

Adipoyl chloride

Hexamethylene diarnine

Both b and c

97 / 100

Category: Chemistry Ch 13 Class 12

) Acetic acid is used in making

Leather shoes

Rubber shoes

Plastic shoe

None of thes

98 / 100

Category: Chemistry Ch 10 Class 11

+3 and +5 oxidation states are often shown by:

Cl

F

Zn

Cu

99 / 100

Category: Chemistry Ch 3 Class 12

Chemical formula of powder used in carom board is?

NaHCO3

H3B03

Na2CO3

K2CO3

100 / 100

Category: Chemistry Ch 10 Class 12

Markownikoff’s rule is best applicable to the reaction between

NUMS 2018
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) C3H6+ Br2

B) C2H4+ HCl

C) C3H8+ Br2

D) C3H6+ HBr

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