Question # 1

Plastic are pollution problem because many plastics

Choose an answer

Are made from petroleum

Are very inflammable

Burn to produce toxic fumes

Decompose to produce toxic product

On adding NH3 to water

Choose an answer

lonic product will increase

[H3O+] will inerease

lonic product will decrease

[H3O+] will decrease

In which of the following molecules strongest hydrogen bond is shown

Choose an answer

water

ammonia

hydrogen fluoride

hydrogen sulphide

Setting process of cement is based on:

Choose an answer

Hydrolysis

Dehydration

Hydration

Oxidation

Glass is a

Choose an answer

Micro-crystalline solid

Super-cooled liquid

Gel

Polymeric mixture

Keratin is

Choose an answer

Protein of tendons

Rich in sulfur

Poor in cysteine

Conjugated protein

The Sl mechanism for the hydrolysis of an alkyl halide to an alcohol involves the formation of

Choose an answer

Carbocation

Carbanion

Pentavalent carbon in the transition state

Free radical

Carboxylic acid is more acidic than phenol because of the greater stability of

Choose an answer

Carboxylic acid

Phenoxide ion

proton

Carboxylate ion

The graph between P onγ-axis and 1/V at x-axis for a given mass of a gas at temperature T is a

Choose an answer

straight line

curved upward

curved downward

circular

The enthalpies of all elements in their standard states are

Choose an answer

Unity

always +ve

always -ve

zero

Which of the following air pollutant is called quiet killer

Choose an answer

PAN

CO

NO₃

SO₃

Which statement is true about order of reaction :

Choose an answer

Order of reaction can only be determined by an experiment.

Order of reaction can be determined from a balance equation only.

Order of reaction increase by increasing temperature.

Order of reaction must be in whole number and not in fraction.

Which carbonate of alkali metals is insoluble in water

Choose an answer

Na₂CO₃

K₂CO₃

Li₂CO₃

Cs₂CO₃

The reaction-method that does not give an alkane is

Choose an answer

Catalytic hydrogenation of alkanes

Wurtz reaction

Hydrolysis of alkyl magnesium bromide

Dehydrohalogenation of an alkyl halide

A compound possessingα-hydrogen atom, in the presence of dilute alkali formsβ-hydroxy aldehyde. This product on heating with dilute acid forms an unsaturated crotonaldehyde. The compound is

Choose an answer

CH₃CHO

CH₃CH₂CHO

CH₂= CH - CHO

HC = C - CHO

Which polymerization is free radical machanism based

Choose an answer

Addition

Condensation

Both a and b

None

The amount of electricity that can deposit 108 g of silver from silver nitrate solution is

Choose an answer

1 ampere

1 coulomb

1 faraday

2 ampere

Hydrolysis of alkyl nitriles is done to get carboxylic acids in the presence of

Choose an answer

Mineral acids

Mineral alkalies

Organics acids

Minerals acids & alkalies

Generally electron affinities for elements in a period from left to right

Choose an answer

Decreases

Increases

Remain same

Increases alternatively

Azimuthal quantum number of last electron of ₁₁Na is

Choose an answer

1

2

3

0

Which of the substances Na, Hg, S Pt and graphite can be used as electrodes in electrolytic cells having aqueous solution?

Choose an answer

Na, Pt and graphite

Na and Hg

Pt and graphite only

Na and S only

One of the following statements is incorrect

Choose an answer

Actual yeild is always less than the theoretical yield

The formula of a compound is not definite

Law of conservation of mass is applied in stoictiometry

Boyles law is applied in stoichiometry

More Classes

Other Links

Chemistry General Science Test Medium Mode 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

Choose an answer