Question

Aquatic species are more comfortable in warm waters than cold waters. $K_H$ values for both $N_2$ and $O_2$ decrease with increase of temperature.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (D)

If both assertion and reason are false

Answer 2

$K_H$ values for both $N_2$ and $O_2$ increase with increase of temperature indicating that the solubility of gases increases with decrease of temperature. Hence, aquatic species are more comfortable in cold waters than in hot waters.