Question

From the list of formulae given below, choose one, in each case corresponding to the salt having the given description:

$\mathrm{AgCl},{\mathrm{CuCO}}_3,{\mathrm{CuSO}}_4.5{\mathrm{H}}_2\mathrm{O},{\mathrm{ZnCO}}_3,{\mathrm{PbCl}}_2,\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2,\mathrm{NaCl},{\mathrm{KNO}}_3,{\mathrm{FeCl}}_2$

A salt prepared by neutralization of an acid with an alkali

Answer 1

1. An alkali is a type of base which is soluble in water. When an acid and base react with each other, they show neutralization reaction giving salt and water as product.
2. The answer is Sodium chloride i.e., $\mathrm{NaCl}$.
3. It is formed by the neutralization reaction between Sodium hydroxide and Hydrochloric acid.

$$\begin{gathered} \mathrm{NaOH}\left(\mathrm{aq}\right)+\mathrm{HCl}\left(\mathrm{aq}\right)\to \mathrm{NaCl}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right) \\ (\mathrm{Sodium}\mathrm{hydroxide})(\mathrm{Hydrochloric}\mathrm{acid})(\mathrm{Sodium}\mathrm{chloride})\left(\mathrm{water}\right) \end{gathered}$$