CBSE Class 12 Chemistry Question paper 2011 (3)

CBSE Class 12 Chemistry Question paper 2011 (3). 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. 'Crystalline solids are anisotropic in nature.' What does this statement mean?

2. Express the relation between conductivity and molar conductivity of a solution held in a cell.

3. Define 'electrophoresis'.

4. Draw the structure of XeF₂ molecule.

5. Draw the structure of 3-methylbutanal.

6. Describe what you understand by primary structure and secondary structure of proteins.

7. What are biodegradable polymers?

8. The chemistry of corrosion of iron is essentially an electrochemical phenomenon.

Explain the reactions occurring during the corrosion of iron in the atmosphere.

9. Assign reasons for the following:

(i) Copper (I) ion is not known in aqueous solution.

(ii) Actinoids exhibit greater range of oxidation states than lanthanoids.

10. Explain the following giving one example for each:

(i) Reimer-Tiemann reaction.

(ii) Friedel Craft's acetylation of anisole.

11. How would you obtain

(i) Picric acid (2, 4, 6-trinitrophenol) from phenol,

(ii) 2-Methylpropene from 2-methylpropanol ?

12.State reasons for each of the following:

(i) All the P-Cl bonds in PCl5 molecule are not equivalent.

(ii) Sulphur has greater tendency for catenation than oxygen. 

Please click the link below to download pdf file of CBSE Class 12 Chemistry Question paper 2011 (3).