Which gas is used to make carbonated drink.
Which non-metal is used in water purification process to make drinking water supply germ-free?
Question 45. A metal carbonate X on reacts with acid and gives a gas which when passed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at the anode during electrolysis of brine is passed on dry Y, it gives a compound Z, used for disinfecting drinking water. Identify X, Y, G and Z.