When air is passed through alkaline pyrogallol and then over quicklime, the only gases left are?

Shozlee

12 years ago

Alkaline pyrogallol and quicklime are both drying agents; they dry off the other constituents of air leaving Nitrogen And Rare Gases.

JesusBaby001

2 years ago

other P/Q are choosing E but they forgot that quicklime can absord co2

Dave333

4 years ago

Alkaline pyrogallol solution turns brown when oxygen is passed through it.

11111a

5 years ago

is meant to be E alkaline pyrogallo absorb oxygen and quicklime dry ammonia

Dave333

4 years ago

Alkaline pyrogallol absorbs water and oxygen. So it is used in photosynthesis to test for the importance of water as one of the materials necessary for photosynthesis to take place.

Bukason.

10 years ago

the right ans shud be....

D

11111a

5 years ago

Is D

Vickiee

12 years ago

I disagree for quicklime, yes, quicklime dries, but it doesn't absorb CO2. It's a metallic hydroxide that absorbs it. E.g CaOH, so correct ur question!