1.

Assertion. Both 106 g of sodium carbonate and 12 g of carbon have same number of carbon atoms. Reason. Both contain 1 g atom of carbon which contains 6.023xx10^(23) carbon atoms.

Answer»

If both assertion and reason are true, and reason is the true explanation of the assertion.
If both assertion and reason are true, but reason is not the true explanation of the assetion.
If assertion is true, but reason if false
If both assertion and reason are false.

Solution :`106G Na_(2)CO_(3)=1mol-=1"g atom of C"`
`"12 g C = 1 g atom of C."`


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