Chemical Process

Question: Direct conversion of chemical energy into electrical energy is done in a
[A].

magnetohydrodynamic (MHD) generator.

[B].

fuel cell.

[C].

fast breeder reactor.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
[A].

10

[B].

25

[C].

50

[D].

98

Answer: Option C

Explanation:

No answer description available for this question.

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: Concentration of hydrogen peroxide is done by
[A].

crystallisation

[B].

vacuum crystallisation

[C].

atmospheric distillation

[D].

dehydration

Answer: Option B

Explanation:

No answer description available for this question.

Question: Blue colour is imparted to glass by the addition of
[A].

FeSO4

[B].

PbO

[C].

CaO

[D].

NaOH

Answer: Option C

Explanation:

No answer description available for this question.

Question: Bleaching action of bleaching powder is due to its __________ properties.
[A].

reducing

[B].

oxidising

[C].

disinfecting

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Gun powder uses
[A].

sulphur

[B].

charcoal

[C].

potassium nitrate

[D].

all (a), (b), & (c)

Answer: Option D

Explanation:

No answer description available for this question.

Question: The catalyst used in the manufacture of DDT is
[A].

alumina.

[B].

silica.

[C].

20% oleum.

[D].

aluminium chloride.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Haemoglobin is a/an
[A].

amino acid

[B].

biological catalyst

[C].

protein

[D].

enezyme

Answer: Option C

Explanation:

No answer description available for this question.

Question: Fermentation of molasses to produce ethyl alcohol is done at __________ °C
[A].

20 – 30

[B].

< – 5

[C].

100 – 150

[D].

250 – 300

Answer: Option A

Explanation:

No answer description available for this question.