Question

which one of the following involved a chemical reaction a) evaporation of water b)storing on nitrogen gas under pressure c) keeping petrol in a China dish in open d) heating magnesium wire in the presence of air at high temperature​

Answer 1

Answer:

Ello :)

The answer for your question is-

d) heating magnesium in presence of air at high temperature.

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Answer 2

Explanation:

D)HEATING MAGNESIUM WIRE IN THE PRESENCE OF AIR AT THE NIGHT TEMPERATURE.

BECAUSE in presence of atmosphere it reacts with O2 and CO2 to form 2Mgco3 and 2Mgo