Question

Give a reason why carbon dioxide and sulphur dioxide cannot be distinguished by using lime water.

Answer 1

As both gives same reactions with lime water so they can not be distinguish by this process.

$Ca\left(OH{)}_2\right(aq)+C{O}_2(g)\to CaC{O}_3(s)+H_{2}O(l)$

$Ca\left(OH{)}_2\right(aq)+S{O}_2(g)\to CaS{O}_3(s)+H_{2}O(l)$