A solution reacts with crushed egg-shells to give a gas that turns lime water milky. The solution contains
$NaCl$
$LiCl$
$KCl$
$HCl$
Name the substance which on treatment with chlorine yields bleaching powder.
Why does distilled water not conduct electricity, whereas rain water does ?
What will happen if a solution of sodium hydrocarbonate is heated ? Give the equation of the reaction involved.
What is a neutralisation reaction? Give two examples.
Equal lengths of magnesium ribbons are taken in test tubes $A$ and $B$. Hydrochloric acid $(HCl)$ is added to test tube $A$, while acetic acid $(CH_3COOH)$ is added to test tube $B$. Amount and concentration taken for both the acids are same. In which test tube will the fizzing occur more vigorously and why ?