Question # 1

Water is purified by:

Choose an answer

Filtration

aeration

coagualation

All of these

The Kw. of water at 25 C° is given by

Choose an answer

10(-7)

10(-10)

10(-12)

10(-14)

Vapour pressure of a liquid is more if

Choose an answer

the intermolecular forces between the molecules of the liquid are strong

the intermolecular forces between the molecules of the liquid are weak

more liquid is present in a container

liquid has more surface area to evaporate

At higher temperature isotherm of Boyle's law moves away from both axis, is due to increase in

Choose an answer

pressure

No. of moles

Volume

all of these

Polycyclic aromatic hydrocarbons are taught to be

Choose an answer

Disinfectant

Carcinogenic

Helpful

Reactive

A sing chlorine free radical can destroy how many ozone molecules:

Choose an answer

10

100

1000

10000

The maximum number of isomer for an alkene with the molecular formula C2H8

Choose an answer

2

3

4

5

The element which has greatest value of Reduction potential is used as

Choose an answer

Strongest reducing agent

Weak oxidizing and strong reducing agent

Strongest oxidizing agent

None of these

Which one of the followings is resistant to oxidation under normal conditions

Choose an answer

Methyl alcohol

Acetaldehyde

Ethyl alcohol

Acetone

In crystal structure of sodium chloride,the arrangement of CI^- ions is

Choose an answer

Fcc

Both fcc and bcc

Bcc

None of these

Electropositive character increases down the groups due to:

Choose an answer

Increase in atomic size of the elements

Decrease in ionization potential

Decreases in electromagnetically of the element

All the above

Acetic acid is 1.33% ionized, In 1000 molecules of 0.1 M acetic acid the number of H⁺ions is

Choose an answer

1.33

13.3

1.33

1

Ethyl alcohol gives ethyl chloride with the help of

Choose an answer

SOCl₂

NaCl

Cl₂

KCl

In the reaction K₂Cr₂O₇+ HCl + CrCl₃+ Cl₂+ H₂O the element which is reduced is

Choose an answer

K

Cl

Cr

H

Methyl alcohol is not used:

Choose an answer

As a solvent

As an anti-freezing agent

As a subsitution for petrol

For denating of ethyle alcohal

A compound A has a molecular formula C₂Cl₃OH. It reduces Fehling solution and on oxidation produces a monocarboxylic acid B.A can also be obtained by the action of Cl₂on Ethanol. A is

Choose an answer

Chloral hydrate

CHCl₃

CH₃Cl

Chloroacetic acid

Dilatometric method is used for rate determination when

Choose an answer

Reactions involving change of optical

Reactions involving change of optical activity

Reactions involving small volume change

None of above

In a heterollytic bond fission reaction

Choose an answer

A molecule of H₂O is formed

A molecule of H₂O is eliminated

A free radical is formed

A positive and a negative ion is formed

K_avalue of HF acid is 6.7 x 10^-15the acid is a

Choose an answer

Weak acid

Moderately strong acid

Strong acid

Very weak acid

Gammexane is

Choose an answer

Chlorobenzene

Benzyl chloride

Brommobenzene

Benzene hexachloride

Oleum is

Choose an answer

Castor oil

Oil of vitriol

Fuming of H₂SO₄

None of them

Polysaccharides are also called

Choose an answer

Crystals

Sugars

Liquids

None sugars

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