Question # 1

The dimension of rate constant of a second order reaction involves

Choose an answer

Neither time nor concentration

Only time

Time and concentration

Time and square of concentration

The halide which is not hydrolysed is

Choose an answer

SiCI₄

SiF₄

CCI₄

PbCI₄

The principle constituent of pyrex glass is

Choose an answer

Zn

B

Pb

CI

Cyclone collector is used for minimizing

Choose an answer

Radioactive pollution

Air pollution

Noise pollution

Water pollution

Covalent compounds are soluble in

Choose an answer

Polar solvents

Non-polar solvents

Concentrated acids

All solvents

Wholer prepared ures from

Choose an answer

Ammonia

NH₄CNO

NH₃

uric acid

Natural fertilizer from plants and animals provide nitrogen

Choose an answer

1.5 kg

3.0 kg

4.5 kg

6 kg

When pressure is applied to the equilibrium system Ice Water Which of the following phenomenon will happen?

Choose an answer

More ice will be formed

Water will evaporate

More water will be formed

Equilibrium will not be formed

Salol is prepared from

Choose an answer

Salicylic acid and phenol

Salicylic acid and methyl alcohol

Both

None

The freezing point of 1 molal NaCI solution assuming NaCI to be 100% dissociated in water in

Choose an answer

-1.86°C

-3.72°C

+1.86°C

+3.72°C

Number of elements presents in the fifth period of periodic table is

Choose an answer

8

10

18

32

Natural fertilizer provides potassium in the form of K₂O (potash)

Choose an answer

1.5 kg

3 kg

4.5 kg

6.5 kg

Which is the most volatile compound?

Choose an answer

HI

HCl

HBr

HF

Which one of the halogen acid is a liquid?

Choose an answer

HF

HCl

HBr

Hl

Inert pair effect plays an important role in case of

Choose an answer

F

Al

Si

Tl

Aluminothermy used for on the spot welding of large iron structure is based upon the fact that

Choose an answer

As compared to iron, aluminium has greater affinity for oxygen

As compared to aluminium, iron has greater affinity for oxygen

Refraction between aluminium and oxygen is endothermic

Reaction between iron and oxygen is endothermic.

The rate at which a substance reacts depends on its

Choose an answer

Atomic weight

Equivalent weight

Molecular weight

Active mass

How many moles of Helium gas occupy 22.4 L at 0°C at a atm. Pressure?

Choose an answer

0.11

0.90

1.0

1.11

As a fixing agent in photography, sodium thisoulphate is used for

Choose an answer

Dissolving out unreacted silver bromide

Converting silver halides to metallic silver

Reducing solubility of AgBr

Preventing overdeveloping and fogging.

Which of the following species participate in sulphonation of benzene ring?

Choose an answer

H₂SO₄

HSO^-₃

SO₃

SO^-₂

Acid rains are produced by

Choose an answer

Excess NO₂ and SO₂from burning fossil fuels

Excess production of NH₃ by industry and coal gas

Excess release of carbon monoxide by incomplete combustion

Excess formation of CO₂ by combustion and animal respiration

Which of the following halogens does not form its oxyacids?

Choose an answer

F

Cl

Br

I

More Classes

Other Links

Chemistry General Science Test Hard 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