Chemistry Lesson Plan in Hindi

Chemistry Lesson Plan in Hindi. We covered all the Chemistry Lesson Plan in Hindi in this post for free so that you can practice well for the exam.

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Chemistry Lesson Plan Objective in Hindi for Students

A non-ideal solution is prepared by mixing 30 ml chloroform and 50 ml acetone. The volume of the mixture will be

(A) > 80 ml

(B) < 80 ml

(C) = 80 ml

(D) ≥ 80 ml

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The vapour pressure is least for

(A) Pure water

(B) 0.1 m aq. urea solution

(C) 0.2 m aq. urea solution

(D) 0.3 m aq. urea solution

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18 g of glucose dissolved in 178.28 g of water. The vapour pressure of water for this aqueous solution at 100°℃ is

(A) 759 torr

(B) 7.60 torr

(C) 76 torr

(D) 752.40 torr

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The relative lowering in vapour pressure of solution produced by dissolving 71.5 g of substance in 100 g of water is 0.00713. The molar mass of the solute is

(A) 18.0

(B) 342

(C) 60

(D) 180

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Colligative properties are used for the determination of

(A) Molar mass

(B) Equivalent mass

(C) Melting and boiling point

(D) Structure of the molecule

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The vapour of a solution containing 2 moles of a solute in 2 moles of water. (Vapour pressure of water = 24 mm Hg)

(A) 24 mm Hg

(B) 32 mm Hg

(C) 48 mm Hg

(D) 12 mm Hg

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An aqueous solution of glucose was prepared by dissolving 18 g of glucose in 90 g of water. Relative lowering in vapour pressure is

(A) 0.02

(B) 1.1

(C) 20

(D) 1.96

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The colligative property of a solution is

(A) Vapour pressure

(B) Boiling point

(C) Osmotic pressure

(D) Freezing point

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18 g of a non-volatile solute dissolved in 900 g of water such that the relative lowering in vapour pressure was 0.002. The molar mass of the solute is

(A) 60

(B) 342

(C) 18

(D) 180

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The vapour pressure of pure water at 30°C is 31.8 mm. The vapour pressure of a solution containing 90 g glucose in 900 g of water at the same! temperature is

(A) 30.24 mm

(B) 31.482 mm

(C) 32.46 mm

(D) 30.74 mm

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Benzene and toluene form nearly ideal solutions. At 25°C, the vapour pressure of benzene is 75 torr and toluene is 22 torr. The partial vapour pressure of benzene at the same temperature for a solution containing 78 g benzene and 46 g toluene in torr is

(A) 50

(B) 25

(C) 37.5

(D) 53.5

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The vapour pressure lowering is caused by the addition of 100 g of sucrose to 1000 g of water. If the vapour pressure of pure water at 25°C is 28.8 mm Hg.

(A) 1.25 mm Hg

(B) 0.125 mm Hg

(C) 1.15 mm Hg

(D) 0.12 mm Hg

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When a liquid is heated its vapour pressure

(A) Increases

(B) Decreases

(C) Increases and becomes constant at the boiling point of the liquid

(D) Unpredictable

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We covered all the chemistry lesson plan in Hindi above in this post for free so that you can practice well for the exam.

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