Concentration of hydrogen peroxide is done by_____________________?

Question: The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is
[A].

alumina

[B].

silica gel

[C].

platinum

[D].

nickel

Answer: Option A

Explanation:

No answer description available for this question.

Question: Chemical name of aspirin (an analgesic drug) is
[A].

acetylsalicylic acid

[B].

nictonic acid

[C].

calcium acetate

[D].

methyl salicylate

Answer: Option A

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.