Question 86 of 86

On heating Li2CO3 and Na2CO3.10H2O, residue is left after heating. The weight loss is due to

(1) Evolution of CO2 from Na2CO3.10H2O only

(2) Evolution of CO2 from Li2CO3 only

(3) Due to evolution of CO2 from Li2CO3 and H2O from Na2CO3.10H2

(4) H2O from  Na2CO3.10H2