Solutions Quiz 6 – Punjab Meritorious School Preparation Portal

Welcome to your 6th Aug Solutions Quiz 6 CBT TEST

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The amount of dibasic acid present in 100 ml of the aq. solution to give solution of [mol. wt. = 200] normality of 0.1 N is

0.5 g

1 g

1.5 g

2 g

Brownian movement is found in

unsaturated solution

saturated solution

colloidal solution

suspension solution

A solution is formed by diluting 250 ml. of 0.400 N H₂SO₄ with one litre of water. The normality of above formed solution is

0.400 N

0.899 N

0.040 N

0.080 N

The freezing point of a 3 % aq. solution of A is equal to the freezing point of 9 % aq. solution of B. If the molecular weight of ‘A’ is 60, then the molecular wt. of B is

180

360

Which one of the following aqueous solutions will exhibit highest boiling point ?

In a 0.2 molal aqueous solution of a weak acid HX the degree of ionization is 0.3. Taking kf for water as 1.85, the freezing point of the solution will be nearest to

– 0.360 ºC

– 0.260 ºC

+ 0.481 ºC

– 0.481 ºC

The elevation in boiling point of a solution of 13.44 g of CuCl₂ in 1 kg of water using the following information will be (Molecular weight of CuCl₂

= 134.4 g and K_b = 0.52 K kg mol^-1)

0.16

0.05

0.1

0.2

1.00 g of a non-electrolyte solute (molar mass 250 g mol^–1) was dissolved in 51.2 g of benzene. If the freezing point depression constant, K_f of benzene is 5.12 K kg mol^–1, the freezing point of benzene will be lowered by

0.3 K

0.5 K

0.4 K

0.2 K

The normality of mixture obtained by mixing 100 ml of 0.4 N H₂SO₄ and 200 ml of 0.2 M HCl is

0.0267

0.2670

1.0267

1.1670

The molecular weight of benzoic acid in benzene as determined by depression in freezing point method corresponds to:

ionization of benzoic acid

dimerization of benzoic acid

trimerization of benzoic acid.

solvation of benzoic acid.

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