1.

Exothermic material does not contain which of the following metal oxide?(a) Cobalt(b) Copper(c) Iron(d) Magnesium

Answer» The correct answer is (d) Magnesium

Best explanation: Exothermic materials are those which generate a lot of heat because of exothermic chemical reactions. Exothermic materials do not include oxides of magnesium.


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