Dense soda ash used in the manufacture of glass, is chemically represented by

Sodium carbonate (soda ash) is not used in the manufacture of

A

Fire extinguishers

B

Sugar

C

Baking powder

D

Detergents

The carbonating tower used in Solvay process of soda ash manufacture is made of

A

Cast iron

B

Stainless steel

C

Karbate

D

Lead lined steel

Sodium bicarbonate is produced during soda ash manufacture using a __________ tower.

A

Plate

B

Baffle

C

Packed

D

None of these

Raw materials for 'Solvay Process' for manufacture of the soda ash are

A

Salt, limestone and coke or gas

B

Ammonia, salt and limestone

C

Ammonia limestone and coke

D

None of these

Which of the following is not required in the manufacture of soda ash by Solvay process?

A

Ammonia

B

Limestone

C

Nitric acid

D

None of these

Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?

A

NH₃

B

NaCl

C

CaO

D

Coke

Fertiliser produced during soda ash manufacture by dual process is ammonium

A

Chloride

B

Sulphate

C

Nitrate

D

None of these

Baking soda is chemically represented by

A

Na₂CO₃

B

NaHCO₃

C

Na₂CO₃.H₂O

D

Na₂CO₃.10H₂O

Washing soda is chemically represented by

A

Na₂CO₃

B

Na₂CO₃.H₂O

C

Na₂CO₃.10H₂O

D

NaHCO₃

When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ .

A

Reflection

B

Refraction

C

Transmission

D

None of the above

Dense soda ash used in the manufacture of glass, is chemically represented by

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