What is used to dry, moist gas?

What is dry ice ?

What is dry ice ?

A metal carbonate X on reacting with an acid gives a gas which when passed through a solution gives the carbonate black. On the other hand, A gas G that is obtained at anode during electrolysis of brine is passed on dry Y, it gives compound Z, used for disinfecting water. Identify X, Y, G and Z.

What is GA_3 ?

Does copper rust? What will happen if copper is exposed to moist air?

Which gas is used for combustion ?