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Question: Oil is a/an
[A].

mixture of glycerides.

[B].

mixture of glycerides of fatty acids.

[C].

solid at normal temperature.

[D].

ester of alcohols other than glycerine.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Widely used method for the conditioning of boiler feed water is the
[A].

cold lime process

[B].

coagulation

[C].

hot-lime soda process

[D].

sequestration

Answer: Option C

Explanation:

No answer description available for this question.

Question: Permanent hardness of water is due to the presence of calcium & magnesium
[A].

bi-carbonates

[B].

sulphates & chlorides

[C].

carbonate

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Glauber’s salt is chemically
[A].

calcium sulphate

[B].

potassium sulphate

[C].

potassium chlorate

[D].

none of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Gypsum is chemically
[A].

calcium chloride

[B].

potassium sulphate

[C].

sodium sulphate

[D].

calcium sulphate

Answer: Option D

Explanation:

No answer description available for this question.

Question: Cement mainly contains
[A].

CaO, SiO2, Al2O3

[B].

MgO, SiO2, K2O

[C].

Al2O3, MgO, Fe2O3

[D].

CaO, MgO, K2O

Answer: Option A

Explanation:

No answer description available for this question.

Question: Mercury cells for caustic soda manufacture, compared to diaphragm cells
[A].

require lower initial investment.

[B].

require more power.

[C].

produce lower concentration NaOH.

[D].

none of these.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Economics of ‘Solvay Process’ depends upon the efficiency of
[A].

carbonating tower

[B].

ammonia recovery

[C].

ammonia recovery and size of the plant

[D].

ammoniation of salt solution

Answer: Option C

Explanation:

No answer description available for this question.

Question: Oxygen is produced by fractionation of air using __________ process.
[A].

Linde’s

[B].

Claude’s

[C].

either (a) or (b)

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Contact process of sulphuric acid manufacture
[A].

yields acid of higher concentration than chamber process.

[B].

yields acids of lower concentration than chamber process.

[C].

is obsolete.

[D].

eliminates absorber.

Answer: Option A

Explanation:

No answer description available for this question.