CBSE 2023 · Region 3 · Set 1 · Q25 · 2 marks
Give reasons for the following: $\displaystyle 2$(a)Aquatic animals are more comfortable in cold water in comparison to warm water.(b)Sprinkling of salt helps in clearing the snow-covered roads in hilly areas.
Give reasons for the following: $\displaystyle 2$
(a)
Aquatic animals are more comfortable in cold water in comparison to warm water.
(b)
Sprinkling of salt helps in clearing the snow-covered roads in hilly areas.
Marking-scheme solution
(a) Due to more solubility of oxygen in cold water than in warm water.
(b) Sprinkling of salt causes depression in freezing point and snow easily melts.
SolutionsVapour Pressure of Liquid SolutionsUnderstandvery_short_answereasy
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CBSE Class 12 Chemistry past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.