CHEMISTRY 12TH CLASS PRIVATE PREVIOUS PAPER 2018 JKBOSE PDF OF OLD PAPER

CHEMISTRY 12TH CLASS PRIVATE PREVIOUS PAPER 2018 JKBOSE PDF OF OLD PAPER

CHEMISTRY 12TH CLASS PRIVATE PREVIOUS PAPER 2018 JKBOSE PDF OF OLD PAPER

SET - C
(Long Answer Type Questions) 

1. Explain the terms: 

(G) molarity (ii) molality (ii) normality (iv) mole fraction (v) parts per million (PPm). 

Or 

What is depression in freezing point ? Derive the relationship between depression in freezing point and molecular mass of a non- volatile solute 

2. State and explain Faraday's laws of electrolysis. What is meant by electro chemical equivalent? 

Or 

What are fuel cells ? Describe H2 - 02 fuel cell. Give advantages of fuel cells 

3. Name the elements of group 15. Give their electronic configuration. List the various oxidation states of nitrogen and give an example in each case.