Chapter 19, Problem 6STP

Interpretation Introduction

Interpretation : The net ionic equation for the neutralization reaction between solutions of potassium hydroxide and hydrochloric acid is to be identified.

Concept Introduction : Salt and water are created when bases and acids react.

A strong acid and strong base react completely to form a neutral solution. A neutralization reaction is a name for this kind of reaction.

Answer to Problem 6STP

Correct answer: Option (A)

The net ionic equation is given as

  ${\text{H}}^{\text{+}}\left(aq\right)+{\text{OH}}^{-}\left(aq\right)\to {\text{H}}_{\text{2}}\text{O}\left(l\right)$

Explanation of Solution

Reason for correct option:

The information about ions present in an aqueous medium is provided by the net ionic equation.

The reaction between potassium hydroxide and hydrochloric acid gives sodium chloride and water. But the net ionic equation deals only with the ions involved in the reaction.

So, it is given as follows:

  ${\text{H}}^{\text{+}}\left(aq\right)+{\text{OH}}^{-}\left(aq\right)\to {\text{H}}_{\text{2}}\text{O}\left(l\right)$

So, option (A) is the correct answer.

Conclusion

Reasons for incorrect options:

Option (B), (C), (D): All these options are irrelevant because it does not give the net ionic equation for the neutralization reaction between sodium hydroxide and hydrochloric acid.