1.

A lot of dry powder of one of the following chemicals can be released over a fire to extinguish it. This chemical is : (a) plaster of Paris (b) baking soda (c) washing soda (d) bitumen

Answer»

A lot of dry powder of one of the following chemicals can be released over a fire to extinguish it. This chemical is :

(a) plaster of Paris

(b) baking soda

(c) washing soda

(d) bitumen



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