NEET 2024 | Solutions Question 3 | Chemistry

NEET 2024

MCQ (Single Correct Answer)

-1

The plot of osmotic pressure (П) vs concentration $$(\mathrm{mol} \mathrm{~L}^{-1})$$ for a solution gives a straight line with slope $$25.73 \mathrm{~L} \mathrm{~bar} \mathrm{~mol}^{-1}$$. The temperature at which the osmotic pressure measurement is done is

(Use $$\mathrm{R}=0.083 \mathrm{~L} \mathrm{~bar} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}$$)

$$37^{\circ} \mathrm{C}$$

$$310^{\circ} \mathrm{C}$$

$$25.73^{\circ} \mathrm{C}$$

$$12.05^{\circ} \mathrm{C}$$

NEET 2023 Manipur

MCQ (Single Correct Answer)

-1

Which amongst the following aqueous solution of electrolytes will have minimum elevation in boiling point? Choose the correct option :-

0.05 M NaCl

0.1 M KCl

0.1 M MgSO$$_4$$

1 M NaCl

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

K_H value for some gases at the same temperature 'T' are given :

Gas	K$$_H$$/k bar
Ar	40.3
CO$$_2$$	1.67
HCHO	1.83 $$\times$$ 10$$^{ - 5}$$
CH$$_4$$	0.413

where K_H is Henry's Law constant in water. The order of their solubility in water is :

HCHO < CH₄ < CO₂ < Ar

Ar < CO₂ < CH₄ < HCHO

Ar < CH₄ < CO₂ < HCHO

HCHO < CO₂ < CH₄ < Ar

NEET 2021

MCQ (Single Correct Answer)

-1

The following solutions were prepared by dissolving 10 g of glucose (C₆H₁₂O₆) in 250 ml of water (P₁), 10 g of urea (CH₄N₂O) in 250 ml of water (P₂) and 10 g of sucrose (C₁₂H₂₂O₁₁) in 250 ml of water (P₃). The right option for the decreasing order of osmotic pressure of these solutions is :

P₃ > P₁ > P₂

P₂ > P₁ > P₃

P₁ > P₂ > P₃

P₂ > P₃ > P₁

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