Question

Write balanced chemical equations for the following statements:

(i) Bleaching powder is kept open in air.

(ii) Blue crystals of copper sulphate are heated.

(iii)Chlorine gas is passed through dry slaked lime.

(iv) Carbon dioxide gas is passed through lime water.

(v) NaOH solution is heated with zinc granules.​

Answer 1

Answer:

1.

2Ca(ClO)2 + 2CO2 -----> 2CaCO3+2Cl2+ O2

2.

CuSO4 ----------> CuO + O2 + SO2

3.

2Ca(OH)2 + 2Cl2 -------> Ca(OCl)2 + CaCl2 +H2O

4.

CO2 + Ca(OH)2-------> CaCO3 + H2O

5.

2NaOH + Zn -------> Na2ZnO2 + H2