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Chemistry · 2025 · 1 mark
CBSE 2025 · Region 7 · Set 3 · Q14
Assertion (A): Aquatic species are more comfortable in cold water than in warm water. Reason (R): Solubility of oxygen gas in water decreases with…
Assertion $\displaystyle (A)$ : Aquatic species are more comfortable in cold water than in warm water.
Reason (R) : Solubility of oxygen gas in water decreases with increase in temperature.
Official answer
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
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CBSE Class 12 Chemistry past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.