Class 12 | Chemistry | Chapter 2 | Solutions

30 MCQs on Solution Concentration & Physical Chemistry Basics

Ruhul Amin Alig

Class 12 | Chemistry | Chapter 2 | Solutions

Which of the following is an expression of Raoults law if P A is the partial pressure of the solvent in a solution. P 0 A is the partial pressure of pure solvent and if X A and X B are the mole fraction of the solute and the solvent respectively?

Ruhul Amin Alig

Class 12 | Chemistry | Chapter 2 | Solutions

Which of the following colligative property can provide molar mass of proteins (or polymers or colloids) with greatest precision ? (a) Osmotic pressure (b) Elevation of boiling point (c) Depression of freezing point (d) Relative lowering of vapour pressure

Ruhul Amin Alig

Class 12 | Chemistry | Chapter 2 | Solutions

A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide, 0.690 g of water and no other products. A volume of 10.0 L (measured at STP) of this welding gas is found to weigh 11.6 g. Calculate (i) empirical formula, (ii) molar mass of the gas, and (iii) molecular formula.

Ruhul Amin Alig

NEET 2021

Question: Given below are two statements: Statement I : Aspirin and Paracetamol belong to the class of narcotic analgesics. Statement II : Morphine and Heroin are non-narcotic analgesics. In the light of the above statements, choose the correct answer from the options given below. (1) Both Statement I and Statement II a re t ru e . (2) Both Statement I and Statement II are false. (3)Statement I is correct but Statement II is false. (4)Statement I is incorrect but Statement II is true. [NEET 2021 ]

Ruhul Amin Alig

Phenol

Which one of the following binary liquid systems shows positive deviation from Raoult’s law? (a) Benzene-toluene (b) Carbon disulphide-acetone (c) Phenol-aniline (d) Chloroform-acetone

Ruhul Amin Alig