In an overheated oil kitchen fire Rohit s mother put a
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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.
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Right Answer is:
SOLUTION
(A) Sodium bicarbonate (IUPAC name:sodium hydrogen carbonate), commonly known as baking soda, is a chemical compound with the formula NaHCO3
(B) The heat of fire decomposes sodium bicarbonate to produce carbon dioxide gas. This carbon dioxide covers the fire like a blanket and cuts off supply of air to the burning substance. Due to this the fire gets extinguished.
(C) Potassium hydrogen carbonate.