1.

Assertion: Mg gets oxidised when heated in CO_(2) atmosphere. Reason: Mg has a strongly affinity for oxygen.

Answer»

If both ASSERTION and REASON are true and the reason is the correct EXPLANATION of assertion
If both assertion and reason are true and the reason is not the correct explanation of assertion
If assertion is false but reason is true
If assertion is true but the reason is false

Solution :`2Mg+CO_(2) overset(DELTA)(to)2MgO+C`
Mg is a strong AGENT and have great affinity for `O_(2)` at high temperature.


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