Question

which chemical is used in fire
extinguishirshow ? how is it harmful​

Answer 1

Explanation:

The active material may be a powder such as potassium bicarbonate (KHCO3), liquid water, an evaporating fluorocarbon or the propelling agent itself. The most effective and common fluorocarbon used until recently for this application had been bromochlorodifluoromethane (CF2ClBr), referred to as halon 1211.

The dry chemical is potassium bicarbonate or sodium bicarbonate. They are harmful if inhaled.