1
KCET 2023
MCQ (Single Correct Answer)
+1
-0

The swelling in feet and ankles of an aged person due to sitting continuously for long hours during travel, is reduced by soaking the feet in warm salt water. This is because of

A
reverse osmosis
B
osmosis
C
edema
D
diffusion
2
KCET 2023
MCQ (Single Correct Answer)
+1
-0

A sample of water is found to contain $$5.85 \%$$ $$\left(\frac{w}{w}\right)$$ of $$A B$$ (molecular mass 58.5 ) and $$9.50 \%$$ $$\left(\frac{w}{w}\right) X Y_2$$ (molecular mass 95). Assuming $$80 \%$$ ionisation of $$A B$$ and $$60 \%$$ ionisation of $$X Y_2$$, the freezing point of water sample is [Given, $$K_f$$ for water $$1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$, Freezing point of pure water is $$273 \mathrm{~K}$$ and $$A, B$$ and $$Y$$ are monovalent ions.]

A
$$264.25 \mathrm{~K}$$
B
$$265.56 \mathrm{~K}$$
C
$$280.44 \mathrm{~K}$$
D
$$281.75 \mathrm{~K}$$
3
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Solubility of a gas in a liquid increases with

A
decrease of $$p$$ and increase of $$T$$
B
increase of $$p$$ and decrease of $$T$$
C
decrease of $$p$$ and decrease of $$T$$
D
increase of $$p$$ and increase of $$T$$
4
KCET 2022
MCQ (Single Correct Answer)
+1
-0

The rise in boiling point of a solution containing $$1.8 \mathrm{~g}$$ of glucose in $$100 \mathrm{~g}$$ of solvent is $$0.1^{\circ} \mathrm{C}$$. The molal elevation constant of the liquid is

A
$$1 \mathrm{~K} \mathrm{~kg} / \mathrm{mol}$$
B
$$2 \mathrm{~K} \mathrm{~kg} / \mathrm{mol}$$
C
$$10 \mathrm{~K} \mathrm{~kg} / \mathrm{mol}$$
D
$$0.1 \mathrm{~K} \mathrm{~kg} / \mathrm{mol}$$
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