1.

Give equations for the following:(i) Preparation of CO2, (ii) Basic properties of Na2CO3, (iii) Formation of acetylene.

Answer»

(i) CaCO3 + 2HCl → CaCl2 + CO2 + H2

(ii) Na2CO3 + 2H2O → 2NaOH + H2CO3 

(iii) CaC2(calcium carbide) + 2H2O → Ca(OH)2 + C2H2(Acetylene)



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