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 9 Class 11

Which statement is correct?

PMC Sample 3
Chemistry
Solution and Colloids
Elimination Tool:

A) Amorphous solids have sharp melting Points

B) Amorphous solids have zero percent arranged

C) Amorphous Solids have a range of melting points

D) Amorphous solids have definite heat of fusion

2 / 100

Category: Chemistry Ch 1 Class 12

Ionic radius in period from left to right:

NUMS 2014
Chemistry
Periodicity in Elements
Elimination Tool:

A) Decreases

B) Increases

C) I st increase and then decrease

D) I st decrease and then increase

3 / 100

Category: Chemistry Ch 8 Class 11

The following changes to the system at equilibrium have no effect on Kc except:

NUMS 2017
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Increasing reactant concentrations

B) Equal number of reactant and product gas molecules

C) Increasing temperature

D) Using a catalyst

4 / 100

Category: Chemistry Ch 1 Class 12

11) Hydrogen has properties similar to:

Alkali metals

Halogens

Both a and b

None of these

5 / 100

Category: Chemistry Ch 8 Class 12

The general formula of Methane Dichloride is:

CH3Cl2

CH4Cl2

CH2Cl2

None of these

6 / 100

Category: Chemistry

Q.94 Which of the following spherical subshell for valance electrons

A. B

B. He

C. N

D. C

7 / 100

Category: Chemistry Ch 4 Class 11

The nature of Binding Force in Ionic Crystals is

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

A) Magnetic

B) Repulsive

C) Electrostatic

D) Weak

8 / 100

Category: Chemistry Ch 7 Class 12

Example of metamerism is:

Dimethyl ether and methyl alcohol

1-Butene and 2-Butene

Diethyl ether and methyl n-propyl ether

n-pentane and iso-pentane

9 / 100

Category: Chemistry Ch 2 Class 11

The molecular formula expresses?

NTS 2015 SMBBMC
Chemistry
Stoichiometry
Elimination Tool:

A) Relative number of atoms and electrons

B) actual number of atoms

C) both relative and actual number of atoms

D) none of the above

10 / 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

11 / 100

Category: Chemistry Ch 1 Class 11

The relative abundance of isotopes of elements are measured by?

PMC Practice 11
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Atomic spectroscopy

B) Ionic spectroscopy

C) Mass spectroscopy

D) Mass spectrometry

12 / 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

13 / 100

Category: Chemistry Ch 11 Class 12

Which of the following reactions is used for the production of alcohols on industrial scale?

UHS 2019
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Hydrogenation of alkenes

B) Hydration of alkenes

C) Hydrohalogenation of alkenes

D) Hydroxylation of alkenes

14 / 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

15 / 100

Category: Chemistry Ch 8 Class 12

Benzene can be prepared from:

PreMedPK MDCAT Mock 2
Chemistry
Hydrocarbons
Elimination Tool:

A) From Petroleum

B) From Coal

C) From Acetylene

D) From Phenol

E) Al of these

16 / 100

Category: Chemistry Ch 1 Class 11

The atoms of hemoglobin is heavier than H-atoms

PMC Practice 23
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 67,000 times

B) 68,000 times

C) 65,000 times

D) 69,000 times

17 / 100

Category: Chemistry Ch 2 Class 12

Which is most basic in character?

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

A) RbOH

B) KOH

C) LIOH

D) NaOH

18 / 100

Category: Chemistry Ch 8 Class 11

For the equilibrium reaction 2 NO2 N2O4 (g) + 61 kJ, increase of temperature would:

NTS 2017
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Favour the formation of N2O4

B) Favour the decomposition N2O4

C) No effect on equilibrium

D) Stop the reaction

19 / 100

Category: Chemistry

Tincture of Iodine is:

NUMS Mock 3
Chemistry
Aldehydes and Ketones

A) In alcohol with CHI3

B) In alcohol with I2

C) In ethanol and water mixture with KI and I2

D) In KI and CH3I

20 / 100

Category: Chemistry Ch 15 Class 12

How many grams of micronutrients are needed by 1 acre of land?

100-1000

200-500

6 to 200

20 to 300

21 / 100

Category: Chemistry Ch 1 Class 12

Which of the following is not the use of bleaching powder?

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

A) Sterilization of drinking water

B) Oxidation of alcohols

C) Bleaching Linen

D) Preparation of Chlorine

22 / 100

Category: Chemistry Ch 10 Class 12

Which of the following Alkyl Halide is most reactive?

RCL

RBr

23 / 100

Category: Chemistry

Q.162 Ifthe concentration of reactants in a chemical reaction is Unity the rate is called

A. Unit rate constant

C. Relative rate constant

B. Specific rate constant

D. Average rate constant

24 / 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

25 / 100

Category: Chemistry Ch 10 Class 12

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

ZnCl2

SO2

Pyridine

KOH

26 / 100

Category: Chemistry Ch 5 Class 12

Electrons are most loosely bound in which of the following halogen?

Iodine

Bromine

Chlorine

Fluorine

27 / 100

Category: Chemistry

Q.101 The maximum charge to mass ratio for those canal rays when ______ gas is used in discharge tube

A. He

B. H2

C. O2

D. N2

28 / 100

Category: Chemistry Ch 3 Class 12

Prussian blue is:

NUMS 2014
Chemistry
d and f Block Elements
Elimination Tool:

A) K2Fe[FeCN6]

B) K4[FeCN6]

C) Fe4[Fe(CN)6] 3xH2O

D) K3FeCN6

29 / 100

Category: Chemistry

The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called:

NUMS Mock 2
Chemistry
Fundamental Principles of Organic Chemistry

A) Functional isomers

B) Position isomers

C) Chain isomers

D) Metamers

30 / 100

Category: Chemistry Ch 9 Class 11

An ideal solvent dissolves maximum solute at?

Boiling point

At room temperature

Saturation point

At Freezing point

31 / 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

32 / 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

33 / 100

Category: Chemistry Ch 12 Class 12

Methyl Magnesium Bromide reacts with formaldehyde. The product will be:

Methyl Alcohol

Acetone

Ethyl Alcohol

Ethane

34 / 100

Category: Chemistry Ch 4 Class 11

To conduct electricity through Ionic Solids, the ions should be:

PMC Practice 5
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Excited

B) Energized

C) Free

D) In random motion

35 / 100

Category: Chemistry Ch 3 Class 11

Statement of Charles Law:

V is directly proportional to P

V is directly proportional to T

) P is inversely proportional to V

d) All of these

36 / 100

Category: Chemistry Ch 5 Class 12

What is the chief ore of fluorine?

Cryolite

Fluorspar

Dolomite

Both a and b

37 / 100

Category: Chemistry Ch 6 Class 11

H2O has a higher boiling point than HF because:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

A) H2O is more polar than HF

B) H2O can form more hydrogen bonds

C) H2O has higher molecular weight

D) H2O has more atoms

38 / 100

Category: Chemistry Ch 15 Class 12

The gas which is mainly produced in landfills from the waste is:

UHS 2016
Chemistry
Environmental Chemistry
Elimination Tool:

A) CH4

B) CO2

C) SO2

D) Cl2

39 / 100

Category: Chemistry Ch 8 Class 11

40 / 100

Category: Chemistry Ch 11 Class 12

Phenol is reduced to benzene on reaction with:

NaOH

KMnO4

41 / 100

Category: Chemistry Ch 6 Class 11

Which of the following is the highest electronegative element?

42 / 100

Category: Chemistry Ch 11 Class 12

2-methyl 2-propanol is:

Secondary butyl alcohol

Tertiary butyl alcohol

Primary butyl alcohol

Quaternary butyl alcohol

43 / 100

Category: Chemistry

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

NUMS Mock 4
Chemistry
Thermochemistry

A) Spontaneous reaction

B) Non-Spontaneous reaction

C) First law of thermodynamics

D) All of the above options are correct

44 / 100

Category: Chemistry Ch 8 Class 12

Methane reacts with chlorine to form chloromethane. The catalyst used is?

NTS 2015 SMBBMC
Biology
Hydrocarbons
Elimination Tool:

A) Pb

B) Zn

C) HCl

D) Sunlight

45 / 100

Category: Chemistry Ch 8 Class 12

Benzene in the presence of AlCl3 produces acetophenone when reacts with:

PreMedPK MDCAT Mock 4
Chemistry
Hydrocarbons
Elimination Tool:

A) Acetyl chloride

B) Acetic acid

C) Ethyl benzene

D) Ethanoic acid

46 / 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

47 / 100

Category: Chemistry Ch 4 Class 11

Which of the following solids is isotropic?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Ionic solids

B) Molecular solids

C) Amorphous solids

D) Metallic solids

48 / 100

Category: Chemistry Ch 10 Class 11

Definition of electrode potential is?

Tendency of metals to form ions when dissolved in 1M solution of its own solution

Tendency of ions to form atoms when dissolved in 1M solution of its metal

Both a and b

None of these

49 / 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.

50 / 100

Category: Chemistry Ch 11 Class 11

Solar energy is stored through solar panels in?

Dry cell

Magnesium cell

Nickel Cadmium battery

None of these

51 / 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

52 / 100

Category: Chemistry

Strongest acid among the following is:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

A) HCOOH

B) CH3COOH

C) (CH3)2CHCOOH

D) (CH3)3CCOOH

53 / 100

Category: Chemistry

Which of the following gas, when ignited, burns with a blue flame and is not very soluble in water?

NUMS Mock 4
Chemistry
s and p Block Elements
Environmental Chemistry

A) O2

B) CO2

C) N2

D) He

54 / 100

Category: Chemistry Ch 6 Class 11

Lithium and beryllium are unique in such a way that they have higher charge densities which produce strong polarizing effects due to:

NTS 2018
Chemistry
Chemical Bonding
Elimination Tool:

A) Non-metal

B) Solubility

C) Small Size

D) Large size

55 / 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

56 / 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

57 / 100

Category: Chemistry Ch 3 Class 12

Aluminum silicate is used In:

Cement

Glass

Urea

None of these

58 / 100

Category: Chemistry Ch 6 Class 12

lanthanide Contraction is phenomenon of block :

f block

s block

d block

P block

59 / 100

Category: Chemistry Ch 15 Class 12

Which is the metal, whose elevated concentration is harmful to fish as it clogs the gills thus causing suffocation?

UHS 2012
Chemistry
Environmental Chemistry
Elimination Tool:

A) Na

B) Pb

C) Zn

D) Al

60 / 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

61 / 100

Category: Chemistry Ch 3 Class 11

When gases expand, this causes:

Cooling

Heating

Remain constant

None

62 / 100

Category: Chemistry Ch 5 Class 12

Oxides of xenon are formed from:

XeF6

XeF4

XeF2

All of these

63 / 100

Category: Chemistry Ch 4 Class 11

Which one Is not possible a)

Ionic crystal

Covalent crystal

Metallic crystal

Atomic-crystal

64 / 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

65 / 100

Category: Chemistry Ch 8 Class 12

Benzene can be prepared from:

NTS 2011
Chemistry
Hydrocarbons
Elimination Tool:

A) From Petroleum

B) From Coal

C) From Acetylene

D) From Phenol

E) Al of these

66 / 100

Category: Chemistry Ch 3 Class 11

The unit of viscosity is:

NTS 2012
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Joule

B) N/m2

C) Dynes/cm

D) Poise

67 / 100

Category: Chemistry Ch 7 Class 12

The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called:

NUMS 2014
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Functional isomers

B) Position isomers

C) Chain isomers

D) Metamers

68 / 100

Category: Chemistry Ch 6 Class 11

Linear combination of atomic orbitals (LCAO) results in the formation of:

NTS 2010
Chemistry
Chemical Bonding
Elimination Tool:

A) Sigma bond

B) Pi bond

C) Bonding molecular orbitals only

D) Bonding and antibonding molecular orbitals

69 / 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

70 / 100

Category: Chemistry Ch 15 Class 12

Which one of the following was used as one of the earliest antiseptic and disinfectants?

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

A) Phenol

B) Ether

C) Ethanol

D) Methanol

71 / 100

Category: Chemistry Ch 13 Class 12

Ease of esterification of the following alcohols CH3CH2OH(I),(CH3)2CHOH and (CH3)3COH(III) with HCOOH is:

NUMS 2017
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) I < II < III

B) III < II < I

C) II < I < III

D) I = II = III

72 / 100

Category: Chemistry Ch 5 Class 11

Which of the following is the electronic configuration of 19K?

NUMS 2016
Chemistry
Atomic Structure
Elimination Tool:

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

B) 1s2, 2s2, 2p6, 3s2, 3p6, 3s2, 3d1

C) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d5

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

73 / 100

Category: Chemistry Ch 1 Class 11

Actual yield is always less than theoretical yield due to

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

A) Operational losses

B) Reaction reversibility

C) Side reaction

D) All of these

74 / 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

75 / 100

Category: Chemistry Ch 1 Class 11

If the number of molecules of different gases are the same at S.T.P., the occupied volume will be _____.

PMC Practice 24
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Greater

B) Same

C) Smaller

D) Twice

76 / 100

Category: Chemistry Ch 3 Class 11

What assumptions are made in the Kinetic Theory about an ideal gas?

There are no forces of attraction between molecules
the molecules are in a state of continuous random motion
the size of the molecule is negligible
NTS 2015 SMBBMC
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

B) II ONLY

C) I AND II ONLY

D) II AND III ONLY

E) I, II, III

77 / 100

Category: Chemistry

Which is not a meta directing group:

NUMS Mock 1
Chemistry
Fundamental Principles of Organic Chemistry

A) -NO2

B) -COOH

C) -NH2

D) -COR

78 / 100

Category: Chemistry Ch 4 Class 11

Boyle’s law is stated as:”The product of pressure and volume of a fixed amount of gas at constant temperature is a _____ quantity

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

A) variable

B) constant

C) discreet

D) decreasing

79 / 100

Category: Chemistry Ch 9 Class 12

Reduction of benzene is presence of Ni gives:

NUMS 2019 Cancelled
Chemistry
Hydrocarbons
Elimination Tool:

A) Cyclohexane

B) Heterocyclic

C) Alicyclic

D) Unsaturated aliphatic

80 / 100

Category: Chemistry

Q.151 An electron in an atom is completely described by its

A. 2 quantum numbers

B. Only one quantum number

C. Four quantum numbers

D. 3 quantum numbers

81 / 100

Category: Chemistry

A single Chloride free radical can destroy ozone molecules up to:

NUMS Mock 1
Chemistry
Enviormental Chemistry

A) 100,000

B) 10,000

C) 100,0000

D) 1000

82 / 100

Category: Chemistry Ch 3 Class 11

Which one is not related to evaporation?

NUMS 2015
Chemistry
Thermochemistry
States of Matter
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Continuous

B) Endothermic

C) Exothermic

D) Spontaneous

83 / 100

Category: Chemistry

Q.140 Which of the following acid solution is used for the seasoning of food?

A. Butyric acid

B. Phthalic acid

C. Lactic acid

D. Acetic acid

84 / 100

Category: Chemistry Ch 6 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)

85 / 100

Category: Chemistry Ch 2 Class 11

Which of the following can ba employed instead of filter papers?

Gooch Crucible

Sintered Glass Crucible

Both a and b

None of these

86 / 100

Category: Chemistry

The reaction: Cl2 + H2O→ HCl + HOCl is an example of:

NUMS Mock 4
Chemistry
Electrochemistry

A) Oxidation reaction

B) Reduction reaction

C) Auto-oxidation and reduction reaction

D) Substitution reaction

87 / 100

Category: Chemistry Ch 15 Class 12

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

UHS 2017 Reconduct
Chemistry
Environmental Chemistry
Elimination Tool:

A) Lead-acid accumulator

B) H2- O2 fuel cell

C) Silver Oxide Battery

D) Alkaline battery

88 / 100

Category: Chemistry

Q.169 The oxidation number of Nickel in [Ni(CO)A] is

A. 2

B. 8

C.6

D.4

89 / 100

Category: Chemistry Ch 16 Class 12

Which one is correct about Incineration of Industrial waste?

Ash buried in sea water.

Secondary chamber is maintained at temperature range 650 C to 1100 C

Smoke stacks emit oxides of nitrogen and carbo

Solids wastes are the significant sources of dioxins

90 / 100

Category: Chemistry Ch 12 Class 12

In Cannizzaro’s reaction, Benzyl alcohol is obtained from?

PreMedPK MDCAT Mock 4
Chemistry
Alcohols, Phenols and Ethers
Aldehydes and Ketones
Elimination Tool:

A) benzaldehyde

B) benzene

C) picric acid

D) benzyl chloride

91 / 100

Category: Chemistry Ch 16 Class 12

Treatment of water which is very effective in killing of pathogens is:

Aeration

Coagulation

Landfill

Chlorine usage

92 / 100

Category: Chemistry Ch 14 Class 12

Industrially water gas is converted into methanol by using catalyst:

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

A) CuO + ZnO

B) CuO + Cr2O3

C) Al2O3+ ZnO

D) ZnO + Cr2O3

93 / 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

94 / 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

95 / 100

Category: Chemistry

Impurities of lead in silver are removed by:

NUMS Mock 2
Chemistry
d and f Block Elements

A) Parke’s process

B) Solvay process

C) Cyanide process

D) Amalgamation process

96 / 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

97 / 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

98 / 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

99 / 100

Category: Chemistry

Q114.The least acidic alcohol is

A. n-Butanol

B. Propanol

C. Ethanol Ethanol

D. Methanol Methanol

100 / 100

Category: Chemistry Ch 12 Class 12

Tollen’s test is used for the detection of:

Aldehydes

Ketones

Carbonyl group

None of these

Your score is

The average score is 54%

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