Question # 1

Which of the following cannot be produced by acidic dehydration of alcohols?

Choose an answer

Ethers

Aldehyde

Alkyl Hydrogen sulphate

Alkene

The molal elevation constant is the ratio of the elevation in boiling point to

Choose an answer

Mojarity

Molality

Mole fraction of solute

Mole fraction of solvent

Wholer prepared urea from

Choose an answer

Ammonia

NH₄CNO

NH₃

Uric acid

White P when boiled with strong solution of caustic soda produces

Choose an answer

Phosphine

Posh acid

Phosphorous acid

None

Which of the following is not present in RNA?

Choose an answer

Uracil

Thymine

Ribose

Phosphate

Which of the following alkali metal hydroxides is the strongest base?

Choose an answer

LiOH

NaOH

KOH

CsOH

Chile salt petre is

Choose an answer

NaNO₃

Na₂SO4

KNO₃

Na₂S₂O₃

Hess's law deals with

Choose an answer

Changes in heat or reaction

Rate of reaction

Equilibrium constant

Influence of pressure on volume of a gas.

Which of the following reaction is used for detecting presence of carbonyl group?

Choose an answer

Reaction with hydroxylamine

Reaction with hydrazine

Reaction with phenyl hydrazine

All

The pore size of filter paper depends upon

Choose an answer

Nature of the medium

Temperature of the medium

Size of particles

Mass of the particles

Bond angle is minimum for

Choose an answer

H₂O

H₂S

H₂Se

H₂Te

In which molecule carbon atom is sp²hybridized

Choose an answer

CH₄

C2H₄

C₂H₂

None of the above

The reagent which forms crystalline osazone derivation when treated with glucose is

Choose an answer

Fehling solution

Phenyl hydrazine

Benedict solution

Hydroxyl amine

A cell constant is generally found by measuring the conductivity of aqueous solution of

Choose an answer

BaCl₂

KCl

NaCl

MgCl₂

The relative rates of diffusion of a gas (molecular weight = 128) as compared to oxygen is

Choose an answer

2 times

1/4

1/8

1/2

A zero order reaction is one whose rate is independent of

Choose an answer

Temperature of the reaction

The concentration of the reactants

The concentration of the products

The material of the vessel in which the reaction is carried out

Ethyl chloride on treatment with aqueous alkali gives

Choose an answer

Ethane

Ethene

Ethanal

Ethanol

Addition of iron fillings to CuSO₄solution caused precipitation of Cu owing to the

Choose an answer

Reduction of Cu²⁺

Oxidation of Cu²⁺

Reduction of Fe

Reduction of Fe³⁺

Which of the following has greatest tendency to lose electron?

Choose an answer

F

Fr

S

Be

Which one is not usually used for the crystallization?

Choose an answer

Acetone

Acetic acid

Sulphuric acid

Chloroform

The number of electrons in the M shell of the element with atomic number 24 is

Choose an answer

24

12

13

8

More Classes

Other Links

NAT II Biological Science Chemistry MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer