CHE201 Final Term MCQs

CHE201 Solved MCQs for final terms.

1. The mass per mole of a pure substance is called a) Atomic mass b) Molecular mass

c) Molar mass

d) Avogadro's number 2. Entropy is measures in

a) J/K

b) J/mol c) JK d) All 3. What is the normal enthalpy of vaporization water

a) 40.7 kJ / mol

b) -40.7kJ/mol c) 41.7 kJ/mol d) 42 kJ/mol 4. Enthalpy of formation of water is a) 286 kJ /mol

b) -286kJ /mol

c) 280kJ/ mol d) 268kJ /mol 5. If we double the concentration of A and quadruple the concentration of B at the same time, then the reaction rate is increased by a factor of

a) 8

b) 6 c) 4 d) 2 6. In zero order reaction the units of “k” are a) Molar/s-1 b) 1/time c) Min-1

d) M/s

7. Solubility is the maximum possible concentration, and it is given in a) M b) g/L

c) both

d) none

8. A solution of water and sugar is called. a) Brine b) Saline c) Ammonia water d) Syrup 9. What is the dielectric constant for methanol

a) 32.6

b) 31.6 c) 32.4 d) 36.6 10. When the free energy reaches its ----possible value, there is no more net change and the system is said to be in equilibrium. a) Minimum b) Maximum c) Highest d) Lowest 11. The maximum diameter for a solute particle is a) 2 nanometer

b) 1 nanometer

c) 0.5 nanometer d) 2.1 nanometer 12. Principle which states that any change to a system at equilibrium will adjust to compensate for that change.

a) Le Châtelier's

b) Henry’s law c) Van’t hoff equation d) None 13. Kc is written a) With units

b) Without units

c) Varry Accordingly d)None 14. -------- is the study of heat, work, energy, and the changes they produce in the states of systems. a) Physical chemistry

b) Thermodynamics

c) Chemistry d) Analytical chemistry