Question

Which of the following statements is correct for the

water with detergents dissolved in it?

a) low concentration of hydroxide ion (OH- )and high

concentration of hydronium ion

(H3O+)

b) high concentration of hydroxide ion (OH- )and low concentration of hydronium ion

(H3O+)

c) high concentration of hydroxide ion (OH-) as well as hydronium ion (H3O+)

d) equal concentration of both hydroxide ion (OH-) and hydronium ion (H3O+).​

Answer 1

Option (b) is correct

Explanation:

• Detergents have a pH of almost 11-12 which means they are basic . Bases ionize to form $OH^-$ ions.
• Therefore concentration of $OH^-$increases in water which contains detergents.
• The reaction maybe represented as :

        $BOH \rightarrow B^+ + OH^-$

• This leads to a high concentration of $OH^-$ , hydroxide ions as compared to hydronium ions in water.
• Hence option (b) is the correct answer.

Answer 2

Answer: high concentration of hydroxide ion (OH– ) and low concentration of hydronium ion (H3O+).

Explanation: