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Question: Low temperature carbonisation of coal takes place at __________ °C.
[A].

300

[B].

1100

[C].

700

[D].

900

Answer: Option C

Explanation:

No answer description available for this question.

Question: Bleaching of paper pulp is done with
[A].

activated clay

[B].

bromine

[C].

chlorine or chlorine dioxide

[D].

magnesium sulphite

Answer: Option C

Explanation:

No answer description available for this question.

Question: Cooking liquor in case of sulphite process is
[A].

sodium sulphite and sodium bisulphite.

[B].

magnesium sulphite and free SO2 in acid medium.

[C].

magnesium sulphate and magnessium bicarbonate.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Comparing sulphate process with sulphite process, we find that __________ in the later.
[A].

both temperature & pressure in the former is less than that

[B].

both temperature & pressure in the former is more than that

[C].

temperature is more in the former whereas pressure is more

[D].

pressure is more in the former whereas temperature is less

Answer: Option B

Explanation:

No answer description available for this question.

Question: In Kraft process of paper manufacture, white cooking liquor consists of caustic soda
[A].

sodium sulphide & sodium carbonate.

[B].

sodium sulphite & sodium carbonate.

[C].

sodium sulphite & sodium sulphide.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Molasses is the starting material for the production of
[A].

alcohol

[B].

essential oil

[C].

fatty acids

[D].

massecuite

Answer: Option A

Explanation:

No answer description available for this question.

Question: Enamels
[A].

give good glossy finish.

[B].

are same as varnish.

[C].

are prepared from non-drying oil.

[D].

do not contain pigment.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Function of thinner in a paint is to
[A].

accelerate the oxidation of oil.

[B].

prevent gelling of the paint.

[C].

suspend pigments & dissolve film forming materials.

[D].

form a protective film.

Answer: Option C

Explanation:

No answer description available for this question.