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 1 Class 11

Actual yield is always less than theoretical yield due to

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

A) operational losses

B) reaction reversibility

C) side reaction

D) all of these

2 / 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

3 / 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

4 / 100

Category: Chemistry Ch 14 Class 12

All are enzymes involved in fermentation process except one:

NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
Elimination Tool:

A) Zymase

B) Invertase

C) Lipase

D) Diastase

5 / 100

Category: Chemistry Ch 9 Class 11

For a chemical reaction to occur, particles that collide should:

PMC 2021 Tested
Chemistry
Solution and Colloids
Elimination Tool:

A) Have proper orientations

B) Have proper energies

C) All of these

D) Be in a homogenous mixture

6 / 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

7 / 100

Category: Chemistry Ch 3 Class 11

When Gypsum is heated to about 100° C, it losses some water of crystallization and becomes:

NTS 2011
Chemistry
States of Matter – Gases, Liquids and Solids
s and p Block Elements
Elimination Tool:

A) Epsom salt

B) Kieserite

C) Plaster of Paris

D) Bleaching Powder

8 / 100

Category: Chemistry Ch 10 Class 12

An SN2 reaction at an asymmetric carbon of a compound always gives:

NTS 2014
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) An metamerism of the substrate

B) A product with opposite optical rotation

C) A mixture of diastereomers

D) A single stereoisomer

9 / 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

10 / 100

Category: Chemistry

Which of the following will react with water?

NUMS Mock 1
Chemistry
Introduction to Fundamental Concepts of Chemistry

A) CHCl3

B) Cl3CCHO

C) CHI4

D) ClCH2CH2Cl

11 / 100

Category: Chemistry

Q.101 Strong acid can be involved in a spontaneous reaction which is termed as

A. Addition Reaction

B. Substitution Reaction

C. Neutralization Reaction

D. Reversible Reaction

12 / 100

Category: Chemistry

The enthalpy change of the reaction

H2(g) + ½ O2 -> H2O (l)

under standard conditions is:

NUMS Mock 1
Chemistry
Thermochemistry

A) Enthalpy change of formation of water

B) Enthalpy change of neutralization

C) Both; Enthalpy change of combustion of Hydrogen and enthalpy change of formation of water

D) Enthalpy change of combustion of Hydrogen

13 / 100

Category: Chemistry Ch 6 Class 11

Which noble gas has highest ionization energy?

14 / 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

15 / 100

Category: Chemistry Ch 1 Class 11

One mole of Oxygen has number of atoms as compared to one mole of Nitrogen

equal

Half

Double

Quarter

16 / 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 %

17 / 100

Category: Chemistry Ch 5 Class 11

The ground state of an atom corresponds to a state of :

NTS 2016 DUHS & JSMU
Chemistry
Atomic Structure
Elimination Tool:

A) Maximum energy

B) Minimum energy

C) Negative energy

D) Positive energy

18 / 100

Category: Chemistry

Q.170 Which of the following is not a mixture of hydrocarbons?

A. Candle wax

B. Kerosine oil

C. Paraffin oil

D. Vegetable ghee

19 / 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

20 / 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

21 / 100

Category: Chemistry Ch 6 Class 11

Sigma bond is formed by:

NTS 2010
Chemistry
Chemical Bonding
Elimination Tool:

A) Transferring the electrons

B) Head-on overlapping of atomic orbitals

C) Mutual but unequal sharing of electrons

D) Parallel overlapping of atomic orbitals

22 / 100

Category: Chemistry Ch 11 Class 11

Type of reactants or product decides the nature of method adapted for finding

PMC Sample 1
Chemistry
Reaction Kinetics
Elimination Tool:

A) Rate constant

B) Enthalpy

C) Temperature

D) Rate of a Reaction

23 / 100

Category: Chemistry Ch 3 Class 12

The total number of transition elements is:

NUMS 2019 Reconduct
Chemistry
d and f Block Elements
Elimination Tool:

A) 58

B) 48

C) 30

D) 25

24 / 100

Category: Chemistry Ch 14 Class 12

Teflon is name of:

Polytetraflurorthylene

Polyhexafluoroethylene

Polytetrachloroethylene

Polyhydrafluoroethylene

25 / 100

Category: Chemistry Ch 8 Class 11

How will the equilibrium of the following reaction be affected if additional nitrogen is added?

N2(g) + 3H2(g)⇌ 2NH3(g)

NTS 2015 DUHS and JSMU
Chemistry
Chemical Equilibrium
Elimination Tool:

A) It will be shifted to the right.

B) It will be shifted to the left.

C) it will be unaffected.

D) The effect on the equilibrium cannot be determined without more information.

26 / 100

Category: Chemistry Ch 10 Class 11

The oxidation number of all the elements in the free state is:

NTS 2012
Chemistry
Electrochemistry
Elimination Tool:

A) 1

B) 3

C) 0

D)-1

27 / 100

Category: Chemistry Ch 9 Class 12

Gasoline is a mixture of?

NUMS 2018
Chemistry
Hydrocarbons
Elimination Tool:

A) C3 – C5 alkanes

B) C15 – C20 alkanes

C) C11 – C15 alkanes

D) C7 – C9 alkanes

28 / 100

Category: Chemistry Ch 6 Class 11

Which of the following ions will show maximum hydration?

NTS 2016 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

A) Mg+2

B) Na+1

C) Al+3

D) Ca+2

29 / 100

Category: Chemistry Ch 10 Class 11

The Oxidation state of Alkali metals in any compound is?

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

A) 1

B) 2

C) 3

D) zero

30 / 100

Category: Chemistry Ch 6 Class 11

Ionization energy depends upon:

Nuclear charge

Shielding effect

Atomic radius

All of the above

31 / 100

Category: Chemistry

Which of the following is least polarizable?

NUMS Mock 1
Chemistry
s and p Block Elements

A) Ne

B) He

C) X

D) Kr

32 / 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

33 / 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

34 / 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

35 / 100

Category: Chemistry Ch 8 Class 12

Which of the following compounds react slower than benzene in electrophilic substitution reaction?

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
Elimination Tool:

A) Nitrobenzene

B) Phenol

C) Aniline

D) Toluene

36 / 100

Category: Chemistry

Q.176 Quantum number values for 2p orbítals are

A. n=2,l=1

B. n= 1.l=2

C. n =1,1l=0

D. n=2,l=2

37 / 100

Category: Chemistry Ch 1 Class 11

Which of the following has six isotopes?

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

A) Cadmium

B) Tin

C) Palladium

D) Carbon

38 / 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

39 / 100

Category: Chemistry Ch 15 Class 12

What is the nature of “hydrated tricalcium aluminate” (3 Ca. Al203. 6 H20) in the setting of cement?

) Hardened mass

Hardened Gel

Colloidal Gel

Liquid

40 / 100

Category: Chemistry Ch 13 Class 12

Hydrolysis of Nitriles produces:

NUMS 2020
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Carboxylic acid

B) Aldehydes

C) Ketones

D) Esters

41 / 100

Category: Chemistry

Q.88 Acetaldehyde in the presence of Con.H2SO4 undergoes

A. Dehydration

B. Polymerization

C. Condensation

D. Oxidation reaction

42 / 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

43 / 100

Category: Chemistry

Q.9 The unit of electronegative is

A. Joule

B. Kilojoules

C. watt

D. no unit

44 / 100

Category: Chemistry Ch 7 Class 11

Burning of fuel is a

Endothermic

Exothermic

Both a & b

None of these

45 / 100

Category: Chemistry Ch 11 Class 11

The rate of reaction:

PMC Sample 2
Chemistry
Reaction Kinetics
Elimination Tool:

A) Increases as the reaction proceeds

B) Decreases as the reaction proceeds

C) Remains unchanged

D) None of these options is correct

46 / 100

Category: Chemistry

Q87 : Octet rule is followed by the central atom of _________ molecule

A. BF3

B. S02

C. SF5

D. CCl4

47 / 100

Category: Chemistry Ch 13 Class 12

Chemical formula of Malonic acid:

C3H8O4

C2H204

C6H12O6

C3H4O4

48 / 100

Category: Chemistry

AgCI is in water.

Partially soluble b)

Completely soluble

Not soluble

None of these

49 / 100

Category: Chemistry Ch 2 Class 12

Color of Epsom salt Is

White

Pink

Blue

Green

50 / 100

Category: Chemistry Ch 1 Class 11

4 gram atoms of carbon has a mass of:

51 / 100

Category: Chemistry Ch 12 Class 12

During oxidation of unsymmetrical ketones which atom is oxidized?

PreMedPK MDCAT Mock 5
Aldehydes and Ketones
PMC Practice 28
Elimination Tool:

A) Carbonyl carbon

B) Carbon attached to smaller number of hydrogen atom

C) Carbon attach to larger number of hydrogen atoms

D) Hydrogen

52 / 100

Category: Chemistry Ch 10 Class 12

Alkyl Halides that go through SN1 reactions are

Primary

Secondary

Tertiary

All of these

53 / 100

Category: Chemistry Ch 9 Class 11

At 25 C, the equivalent conductance at infinite dilution of HCl solution is 425 ohm 1 cm 2 Equiv 1 while its specific conductance is 3.825 ohm 1 cm 1. If the apparent degree of dissociation is 90%, the normality of the solution is:

NUMS 2016
Chemistry
Solution and Colloids
Elimination Tool:

A) 0.9 N

B) 1.0 N

C) 1.1 N

D) 1.2 N

54 / 100

Category: Chemistry Ch 6 Class 11

The order of force of repulsion between lone pairs and Bond pairs is?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

A) Lone pair Bond -pair repulsion > lone pair lone pair repulsion> Bond pair Bond pair repulsion

B) Bond pair -Bond pair repulsion> lone pair lone pair repulsion> lone pair Bond pair repulsion

C) lone pair lone pair repulsion> Bond pair Bond pair repulsion> lone pair Bond pair repulsion

D) lone pair lone pair repulsion> lone pair Bond pair repulsion> Bond pair Bond pair repulsion

55 / 100

Category: Chemistry Ch 4 Class 12

The formula of Chile Peter salt is

NaCI

NaNO3

NaOH

NaNO4

56 / 100

Category: Chemistry Ch 1 Class 12

The formula of washing soda is:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

A) N2CO3

B) Na2CO3 . H2O

C) Na2CO3 . 7H2O

D) Na2CO3 . 10 H2O

57 / 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

58 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is the most widely used fertilizer in Pakistan?

Ammonium Nitrate

Ammonia

Calcium Nitrate

Urea

59 / 100

Category: Chemistry Ch 3 Class 12

Which of the following does not act as ligand in the formation of complexes?

NUMS 2019 Reconduct
Chemistry
d and f Block Elements
Elimination Tool:

A) CH3NH2

B) OH-

C) Cl-

D) NH4+

60 / 100

Category: Chemistry Ch 6 Class 11

GN lewis described which one of the following bonds?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

A) Ionic bond

B) covalent bond

C) coordinate covalent bond

D) all of the above

61 / 100

Category: Chemistry Ch 1 Class 11

The total number of neutrons in 5g of H2O are:

1 NA = 6.023 x 1023

PMC Practice 18
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 25 NA

B) 1.1 NA

C) 2.5 NA

D) 0.5 NA

62 / 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

63 / 100

Category: Chemistry Ch 4 Class 12

Choose the correct IUPAC name for the following complex.

[Cr(NH3)4Cl2]Cl

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

A) Trichlorotetra amine chromium (lII)

B) Dichlorotetra amine chromium (III) chloride

C) Dichloro Tetra ammonia chromium (III) chloride

D) Dichlorotetra amine chromate (lll) chloride

64 / 100

Category: Chemistry

Q.102 In electrochemical series reduction potential relates to only

A. Real Conditions

B. Standard Conditions

C. Positive Values

D. Negative Values

65 / 100

Category: Chemistry Ch 12 Class 12

Simplest aromatic aldehyde has number of hydrogen atoms.

66 / 100

Category: Chemistry Ch 11 Class 12

Which of following is an example of electrophilic attack on alcohols?

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

A) C2H5OH + CH3COOH → CH3COOC2H5 + H2O

B) 2C2H5OH+2Na→ 2CH5ONa+H2

C) C2H5OH + HCl → C2H5Cl + H2O

D) Both A and B

67 / 100

Category: Chemistry Ch 1 Class 12

Smallest element in the periodic table is?

Hydrogen

Fluorine

Lithium

Uranium

68 / 100

Category: Chemistry Ch 4 Class 11

Vapor pressure depends on

Size of the container used to collect the gas

Current atmospheric pressure

Temperature of the liquid

d) Kind of gas that is being collected

69 / 100

Category: Chemistry Ch 1 Class 12

By increasing which of the following factor polarizability increases?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

A) Atomic radius

B) Ionization energy

C) Ionic radius

D) Hydration energy

70 / 100

Category: Chemistry Ch 9 Class 12

Free radical reactions take place in the presence of ______?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Heat

B) Sunlight

C) Catalyst

D) Oxygen

71 / 100

Category: Chemistry

Q.145 Activator of phosphatase enzyme

A. Mn2+

B. Mg2-

C. Zn

D. None of these

72 / 100

Category: Chemistry

Q.91 The half-ire of Uranium i

A. 700 Millon years

B.706 Million years

C 89 days

D. 710 million year

73 / 100

Category: Chemistry Ch 15 Class 12

Genetic mutations occur in:

NUMS 2016
Chemistry
Chemistry of Life
Elimination Tool:

A) RNA

B) Protein

C) DNA

D) All of the above

74 / 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

75 / 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

76 / 100

Category: Chemistry Ch 3 Class 12

Aluminum reacts with H2SO4 to produce

Al2(S04))

SO3

SO2

77 / 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

78 / 100

Category: Chemistry Ch 3 Class 12

Scandium, Sc, is the first of the 3d blocks of elements in the Periodic table.

Which properties of Sc approve the above fact?

NUMS 2019 Cancelled
Chemistry
d and f Block Elements
Elimination Tool:

A) Sc has ionic chloride

B) Sc readily forms oxidation state of +3

C) Compounds containing the Sc3+ion are always colored.

D) Sc has ionic chloride and Sc readily forms oxidation state of +3

79 / 100

Category: Chemistry Ch 3 Class 11

A sample of gas weighs 1.25 g, at 28 C occupying a volume of 2.50 x 10-2 ml and its pressure is 715 torr. What is the molar mass in grams?

NTS 2016 DUHS & JSMU
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 131.1

B) 1.311

C) 1.212

D) 122.1

80 / 100

Category: Chemistry Ch 15 Class 12

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

NUMS 2017
Chemistry
Environmental Chemistry
Elimination Tool:

A) Lead-acid accumulator

B) H2- O2fuel cell

C) Silver oxide battery

D) Alkaline battery

81 / 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

82 / 100

Category: Chemistry Ch 1 Class 12

The ionization energy increases from left to right in a period due to increase in?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

A) Nuclear charge

B) Number of electrons

C) Atomic number

D) All of these

83 / 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

84 / 100

Category: Chemistry Ch 15 Class 12

Urea is the most widely used nitrogen fertilizer in Pakistan. Its composition is:

UHS 2015
Chemistry
Environmental Chemistry
Elimination Tool:

A) NH2CO

B) N2H5CO2

C) N2H4CO2

D) N2H4CO

85 / 100

Category: Chemistry Ch 13 Class 12

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

PMC Practice 3
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

86 / 100

Category: Chemistry Ch 1 Class 11

Which of the following will react with water?

NUMS 2016
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) CHCl3

B) Cl3CCHO

C) CHI4

D) ClCH2CH2Cl

87 / 100

Category: Chemistry Ch 3 Class 12

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

iron

Plastic

Alumuium

Helim

88 / 100

Category: Chemistry Ch 12 Class 12

Methyl ketones can be characterized by performing:

NUMS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Iodoform test

B) Schiff’s test

C) Benedict’s reagent test

D) Tollen’s test

89 / 100

Category: Chemistry Ch 3 Class 11

The internal energy of an ideal gas depends upon its:

NTS 2016 DUHS & JSMU
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Molecular size

B) Pressure only.

C) Volume only

D) Temperature only

90 / 100

Category: Chemistry

Q.103 In phenol, the hydroxyl group is attached to

A. Phenyl group

B. Benzoyl group

C. Benzyl group

D. Benzal group

91 / 100

Category: Chemistry Ch 14 Class 12

) Plastic cannot be recycled by

Depolymerization

Transformation

Deformation

None of these

92 / 100

Category: Chemistry Ch 10 Class 12

Which of the following is true about SN2 reactions:

They follow a two-step bimolecular mechanism

they do not undergo rearrangements

Methyl and primary substrates react faster than secondary and tertiary substrates

the rate of the reactions depend on both the substrate and nucleophile concentration

93 / 100

Category: Chemistry Ch 14 Class 12

Starch is a polymer of: N

a-d glucos

b-d glucose

Amino acids

Amylose

94 / 100

Category: Chemistry Ch 5 Class 12

Which of the following is the highest oxidizing agent?

Cl2

Br2

95 / 100

Category: Chemistry Ch 7 Class 12

Which one of them is used as an automobile antifreeze

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

A) Ethanol

B) ethene

C) ethylene glycol

D) propene

96 / 100

Category: Chemistry Ch 6 Class 11

The common features, among the species CN, CO and NO are:

NUMS 2016
Chemistry
Chemical Bonding
Elimination Tool:

A) Bond order three and Isoelectronic

B) Bond order three and weak field ligands

C) Bond order two andπacceptors

D) Isoelectronic and weak field ligands

97 / 100

Category: Chemistry Ch 10 Class 11

Both a and c What is the oxidation number of S in SO2^(-2)?

— 6

98 / 100

Category: Chemistry

Q.159 An aromatic compound that can obtained from coal tar is

A. Benzene

B. Toluene

C. Phenol

D. Diphenylmethane

99 / 100

Category: Chemistry Ch 4 Class 11

Molecular substances differ from ionic substances in:

Low boiling points

Less electrical conductance

low melting points

All of these

100 / 100

Category: Chemistry Ch 3 Class 12

A six-coordinate complex of formula CrCl3.6H2O has green color. A 0.1 M solution of the complex, when treated with an excess of AgCl, gave 28.7 g of a white precipitate. The formula of the complex would be___________.

NUMS 2019 Cancelled
Chemistry
d and f Block Elements
Elimination Tool:

A) [Cr(H2O)6]Cl3

B) [Cr(H2O)5Cl]Cl2.2H2O

C) [Cr(H2O)4Cl2]Cl.2H2O

D) [Cr(H2O)3Cl3].3H2O

Your score is

The average score is 55%

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