Question # 1

DDT is a:

Choose an answer

Fungicide

Insecticide

Herbicide

All

Naturally occurring isotopes of silver are

Choose an answer

,Two

, Four

, Forty seven

, sixteen

Exhaust fumes of cars contain which poisonous gas

Choose an answer

CH₄

C₂H₆

CO

All of these

If temperature is 73K and volume is 146 cm3 then calculate the value of K=V/T

Choose an answer

5

4

3

2

If Cl2 is passed through hot NaOH. NaCIO3 is formed and the oxidation number of CI changes from

Choose an answer

-1 to 0

0 to +5

0 to-1

0 to +1

Nucleic acid fist descovered in

Choose an answer

1868

1869

1900

1905

The order of reactivitv of alksI halides towards nucleophile is

Choose an answer

RI>RBr RF>RCI

RF>RCI>RBr>RI

RI>RBr> RCI>RE

RF>RBr>RCI>RI

The solid particles posses only ______ kinetic energy

Choose an answer

Translational

Rotational

Viberational

Circular

Which of the following is not a heavy industry?

Choose an answer

Iron

Fertilize

Paper

None

The unit of R depends on

Choose an answer

Mole

Pressure volume

Temperature

None of these

Which one of the following is a water soluble vitamin?

Choose an answer

niacin

rioflavin

trypsin

ascorobic acid

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

The volume occupied by 1.4 g of N₂at S.T.P is

Choose an answer

2.24 dm³

22.4 dm³

1.12 dm³

112 cm³

Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

Choose an answer

Fullerences

Freons

Polyhalogens

Ferrocene

First atomic theory was put forward by an English school teacher:

Choose an answer

Maxewell

Newton

Sanger

John Dalton

Which of the following reagents is used to distinguish between methanoic acid and ethanoic acid?

Choose an answer

Amm. silver nitrate solution

Neutral ferric chloride

Sodium hydroxide solution

Sodium carbonate solution

Aromatic aldehydes undergo disproportionation in presence of sodium or potassium hydroxide to give corresponding alcohol and acid. The reaction is known as

Choose an answer

Wurtz reaction

Cannizzaro reaction

Friedel Craft reaction

Claisen reaction

Which is not a calcarious material?

Choose an answer

Lime

Clay

Marble

Marine shell

The solubility of PbF₂is 2.6 x 10^-3mole dm^-3then its solubility product is

Choose an answer

2.6 x 10^-3

6.76 x 10^-6

5.2 x 10^-6

7.0 x 10^-8

Which of the following is most electronegative?

Choose an answer

Carbon

Silicon

Lead

Tin

Rate of chemical reaction depends upon :

Choose an answer

The number of total collisions per second.

Number of molecules taking part in a chemical reaction.

Number of fruitful collisions per second

Number of fruitless collisions per second.

Chromic acid used to oxidize

Choose an answer

Aldehyde

Ketone

Both a and b

None of these

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