Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.

Question: Cumene (isopropyl benzene) is made by
[A].

oxidation of napthalene.

[B].

propylene alkylation of benzene.

[C].

polymerisation of a mixture of benzene & propylene.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

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

pencillin

[B].

antibiotics

[C].

wine

[D].

pasteurised milk

Answer: Option C

Explanation:

No answer description available for this question.

Question: Ethyl alcohol cannot be produced
[A].

from waste sulphite substrate of paper mills.

[B].

by esterification and hydroloysis of ethylene.

[C].

from molasses.

[D].

none of these.

Answer: Option D

Explanation:

No answer description available for this question.