ABHYAS | Self Learning | Testing Platform

Q.1

What is the chemical formula of sodium carbonate ?

A.

$large NaOH$

B.

$large NaCO_3.10H_2O$

C.

$large Na_2CO_3.10H_2O$

D.

$large NaCO_3$

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Q.2

Given below is a general equation of a reaction between an acid and a base: $large XOH + HY rightarrow XY + H_2O$

Which of the following is the Cation part of salt?

A.

X

B.

OH

C.

H

D.

Y

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Q.3

Which of the following gases is produced at the Anode in the chlor-alkali process?

A.

Hydrogen

B.

Sulphur

C.

Oxygen

D.

Chlorine

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Q.4

Which one of the following is not applicable for bleaching powder?

A.

Used for bleaching wood pulp

B.

Used for disinfecting drinking water

C.

Used as an oxidising agent in many chemical industries

D.

Used for softening hard water

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Q.5

What is the chemical formula of sodium bi - carbonate ?

A.

$large NaOH$

B.

$large Na_2CO.10H_2O$

C.

$large Na_2CO_3$

D.

$large NaHCO_3$

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Q.6

Which of the following gases is at the anode in chlor alkali process?

A.

Hydrogen

B.

Chlorine

C.

Oxygen

D.

Nitrogen

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Q.7

The expected pH of solution of calcium sulphate is ___________________

A.

Exactly 7

B.

Less than 7

C.

Between 7-10

D.

Above 12.

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Q.8

Chemically baking soda is _______________

A.

$large Ca(OH)_2$

B.

$large NaHCO_3$

C.

$large Na_2CO_3$

D.

CaO

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Q.9

The chemical formula of gypsum is _________________

A.

$large CaSO_4.frac{1}{2}H_2O$

B.

$large CaSO_4.H_2O$

C.

$large CaSO_4.2H_2O$

D.

$large CaSO_4.3H_2O$

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Q.10

______________ plants can tolerate a wide range of soil pH ?

A.

Potato

B.

Tomato

C.

Blue berries

D.

Graps

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Attention !!!!!