Amount of oxalic acid ${\left(\mathrm{COOH}\right)}_2.2{\mathrm{H}}_2\mathrm{O}$ in grams that is required to obtain 250 ml of a semi-molar solution is 

(1) 17.25 g

(2) 17.00 g

(3) 15.75 g

(4) 15.00 g

Volume of 10 M HCl should be diluted with water to prepare 2.00 L of 5 M HCl is 

(1) 2 L

(2) 1.5 L

(3) 1.00 L

(4) 0.5 L

The volume of 95% H₂SO₄ (density = 1.85 g cm^–3) needed to prepare 100 cm³ of 15% solution of H₂SO₄ (density = 1.10 g cm³) will be

(1) 5 cc

(2) 7.5 cc

(3) 9.4 cc

(4) 12.4 cc

The molarity of a $0.2\mathrm{N}{\mathrm{Na}}_2{\mathrm{CO}}_3$ solution will be [MP PMT 1987]

(1) 0.05 M

(2) 0.2 M

(3) 0.1 M

(4) 0.4 M

If 20 ml of 0.4 N NaOH solution completely neutralises 40 ml of dibasic acid. The molarity of acid solution is

(1) 0.1 M

(2) 0.2 M

(2) 0.3 M

(4) 0.4 M

H₂SO₄ solution whose specific gravity is 1.98 g ml^–1 and H₂SO₄ by volume is 95% (w/v). The molality of the solution will be

(1) 7.412

(2) 8.412

(3) 9.412

(4) 10.412

The density of H₂SO₄ solution is 1.84 g ml^–1. In a 1 litre solution if H₂SO₄ is 93 % by (w/v) then the molality of the solution is -

A solution contains 16 gm of methanol and 90 gm of water, mole fraction of methanol is

(1) 0.90

(2) 0.090

(3) 0.1

(4) 1.9

A solution has 25% of water, 25% ethanol and 50% acetic acid by mass. The mole fraction of each component respectivelywill be

(1) 0.50, 0.3, 0.19

(2) 0.19, 0.3, 0.50

(3) 0.3, 0.19, 0.5

(4) 0.50, 0.19, 0.3

34.2 g of cane sugar is dissolved in 180 g of water. The relative lowering of vapour pressure will be

(1) 0.0099

(2) 1.1597

(3) 0.840

(4) 0.9901