____________________ of rubber decreases after its vulcanisation?

Question: Function of sodium thiosulphate (hypo) in development of photographic film/plate is to
[A].

brighten the faint images.

[B].

remove metallic silver.

[C].

convert silver chloride to silver.

[D].

remove unexposed silver halide.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Chemical name of ‘alum’ is
[A].

barium sulphate.

[B].

aluminium sulphate.

[C].

aluminium chloride.

[D].

calcium sulphate.

Answer: Option B

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: Essential oils are usually obtained using
[A].

steam distillation

[B].

extractive distillation

[C].

solvent extraction

[D].

leaching

Answer: Option D

Explanation:

No answer description available for this question.