Commercial production of soda ash by Solvay process requires limestone, ___________________ as raw materials?

Question: Graphite is a/an
[A].

electrical insulator.

[B].

allotrope of carbon.

[C].

moderator used in nuclear reactor.

[D].

both (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Question: Fourdrinier machine is used in the manufacture of
[A].

sugar

[B].

paper

[C].

alcohol from molasses

[D].

phenol formaldehyde

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ is a thermosetting plastic.
[A].

Polyvinyl chloride

[B].

Polythene

[C].

Bakelite

[D].

Teflon

Answer: Option C

Explanation:

No answer description available for this question.

Question: Pasteurisation of milk means
[A].

removal of fatty and albuminous substance from it.

[B].

killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics.

[C].

inhibiting the growth of micro-organisms without killing them.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.