Solutions MCQs for NEET — Chemistry Questions with Answers

Mole of K₂SO₄ to be dissolved in 12 moles water to lower its vapour pressure by 10 mm of Hg at a temperature at which vapour pressure of pure water is 50 mm of Hg is

Which has highest freezing point ?

Aluminium phosphate is 100% ionized in 0.01m aqueous solution. Hence, $∆{\mathrm{T}}_{\mathrm{b}}/{\mathrm{k}}_{\mathrm{b}}$ is

Which solution has highest freezing point?

Osmotic pressure of 40% (w/V) urea solution is 1.64 atm. and that of 3.42% (w/V) cane sugar solution is 2.46 atm. When equal volumes of the above two solutions are mixed, the osmotic pressure of the resulting solution will be?  

20g of naphthoic acid (C₁₁H₈O₂) dissolved in 50g of benzene (K_f=1.72 K Kg mol^-1) shows a depression in freezing point of 2K. The Vant Hoff factor is?

A 0.002 molar solution of NaCl having degree of dissociation of 90% at 27⁰C, has osmotic pressure equal to:-

The density of NH₄OH solution is found to be 0.6 g/ml. It contains 35% by mass of NH₄OH. The normality of the solution is

The relative lowering of vapour caused by dissolving 71.3g of a substance in 1000g of water is 7.13x10^-3. The molecular mass of substance is:-

Total vapour pressure of mixture of 1 mol A(p₀^A = 150 torr) and 2 mol B(P⁰_B = 240 torr) is 200 torr. In this case:-