CBSE Class 12 Chemistry Question Paper 2014 Set 1 - Foreign

CBSE Class 12 Chemistry Question Paper 2014 Set 1 - Foreign. Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

1. What is the function of collectors in the froth floatation process for the concentration of ores ?

2. What type of forces are responsible for the occurrence of physisorption ?

3. Why is the single N – N bond weaker than the single P – P bond ?

4. Express the relationship between atomic radius (r) and the edge length (a) in the b.c.c. unit cell.

5. Write the chemical reactions involved in the extraction of silver from silver ore.

6. Name the reagents used in the following reactions :

(i) Bromination of phenol to 2,4,6-tribromophenol

(ii) Butan-2-one to Butan-2-ol

(iii) Friedel − Crafts alkylation of anisole

(iv) Oxidation of primary alcohol to carboxylic acid

7. Define half-life of a reaction. Write the expression of half-life for

(i) zero order reaction and

(ii) first order reaction. 

 Please click the link below to download pdf file of CBSE Class 12 Chemistry Question Paper 2014 Set 1 - Foreign.