Question

The following is a reversible reaction
a) KCIO, heated in a sealed tube
b) Na.co, heated in a closed vessel
Caco, heated in a closed vessel
d) CH, heated with excess of o, in a closed vessel
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Answer 1

The following is a reversible reaction

a) KCIO, heated in a sealed tube

b) Na.co, heated in a closed vessel

Caco, heated in a closed vessel

d) CH, heated with excess of o, in a closed vessel✓✓✓✓

Answer 2

I think the options are

a) KClO3

b)Na2CO3

c)CaCo3

d)CH4

The correct answer is c) CaCO3 heated in a closed vessel as it decomposes to CaO and CO2, which can reform it into CaCO3