Question

In the chemical reaction given below, which of the following cannot be the correct sequence of the physical states of the reactants and products, respectively?

${\mathrm{AgNO}}_3+\mathrm{KCl}\to \mathrm{AgCl}+{\mathrm{KNO}}_3$

• A. aq , aq, aq, aq
• B. aq , aq, s, aq
• C. s, aq, s, aq
• D. aq , s, s, aq

Answer 1

The correct option is A

aq , aq, aq, aq

1. In the above reaction, ${\mathrm{AgNO}}_3+\mathrm{KCl}\to \mathrm{AgCl}+{\mathrm{KNO}}_3$,the incorrect sequence of the physical states of the reactants and products is aq, aq, aq, aq because the reactants ${\mathrm{AgNO}}_3$ (Silver nitrate) and $\mathrm{KCl}$ (Potassium chlorine) can be present in aqueous state but the product $\mathrm{AgCl}$ (Silver nitrate) cannot be present in aqueous state because it always present in solid state.
2. $\underset{(Silvernitrate)}{\underbrace{{\mathrm{AgNO}}_3\left(aq\right)}}+\underset{(Pottasiumchloride)}{\underbrace{\mathrm{KCl}\left(aq\right)}}\to \underset{\underset{\left(White\right)}{(Silverchloride})}{\underbrace{\mathrm{AgCl}\left(aq\right)}}\downarrow +\underset{(Pottasiumnitrate)}{\underbrace{{\mathrm{KNO}}_3\left(aq\right)}}$

Hence, the correct option is (a).i.e., the incorrect sequence of the physical states of the reactants and products is aq, aq, aq, aq.