Question

Cottrell precipitator is used to
(a) precipitate mud from muddy water.
(b) precipitate carbon particles from smoke.
(c) purify the ordinary drinking water.
(d) precipitate salts in qualitative analysis.

Answer 1

Answer:

correct answer is (d).... hope it helps

Answer 2

Cottrell precipitator

Explanation:

• Cottrell precipitator is used to precipitate carbon particles from smoke. So, option B is correct.

• Cottrell's precipitator neutralizes charges on colloidal particles.

• The smoke particles released from industries have charged colloidal carbon particles, which are precipitated by Cottrell's precipitator.
• Carbon particles are introduced into the opposite charged plate so that carbon loses its charge and precipitate. This type of precipitation is called Cottrell's smoke precipitator.