Which substance is used to extinguish fire in substances like oil, fat and petrol?
In an overheated oil kitchen fire , Rohit 's mother put a lot of dry white powder 'X' on the pan. The fire got extinguished.
(A) What could be the dry powder 'X' ?
(B) How does 'X' extinguish the fire ?
( C) Name an another substance like 'X' used to extinguish fire.