Analgesic drugs are__________________?

Question: Flexible foam (for mattresses) is usually made of
[A].

PVC

[B].

silicone

[C].

polyurethanes

[D].

polyamides

Answer: Option C

Explanation:

No answer description available for this question.

Question: Flux addition during smelting of ore is done to
[A].

remove impurities/gangue.

[B].

enhance rate of reaction.

[C].

accelerate reduction of ore.

[D].

separate slag from metal.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively
[A].

V2O5 & Cr2O3.

[B].

oxides of nitrogen & Cr2O3.

[C].

V2O5 on a porous carrier & oxides of nitrogen.

[D].

oxides of nitrogen & V2O5 on a porous carrier.

Answer: Option D

Explanation:

No answer description available for this question.

Question: H2S is scrubbed from refinery gases by absorption using
[A].

dilute H2SO4

[B].

ethanol amine

[C].

chilled water

[D].

tri-butyl phosphate

Answer: Option B

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.