Question

Increase in the OH-ion concentration, leads to
(a) an increases in the pH of solution
(b) a decrease in the pH of the solution
(c) doesn't alter the pH of the solution
(d) decreases the basic strength of the solution​

Answer 1

Answer:

A is correct option

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Answer 2

Answer:

The increase in the concentration of OH⁻ ions will lead to increase the pH of solution.

Therefore the option (a) is correct.

Explanation:

• We use the pH scale to measure the acidic strength or basic strength of any solution.
• On the pH scale the any value between 0 to 7 indicates acidic nature while 7 is neutral and any value between 7 to 14 indicates basic nature.
• If the concentration of OH⁻ ions increase in the solution means solution became more basic. Therefore the pH value lies somewhere above 7.

Therefore, with increase in the concentration of  OH⁻ ions, the pH of the solution will also increase.