Refractory bricks having high thermal conductivity is desirable, when it is to be used in the _________________?

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: Chrome tanning and vegetable tanning are done for
[A].

light & heavy leather respectively.

[B].

heavy & light leather respectively.

[C].

both light & heavy leather.

[D].

neither light nor heavy leather.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Permanent hardness of water can be removed by
[A].

simply boiling.

[B].

adding alum.

[C].

passing it through cation & anion exchangers.

[D].

all (a), (b) and (c).

Answer: Option C

Explanation:

No answer description available for this question.