CBSE Class 12 Chemistry Question paper 2007 (3)

CBSE Class 12 Chemistry Question paper 2007 (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. What is the coordination number in a rock salt type structure ?

2. State Raoult’s law for a binary solution containing volatile components.

3. What is meant by order of a reaction being zero ?

4. Write the IUPAC name of the following compound :

(CH₃)₃CCH₂COOH

5. Mention one commercial use of N,N-Dimethylaniline (DMA).

6. State as a mathematical formula the de Broglie relationship for moving particles. What experimental evidence is available for this concept ?

OR

Specify the ranges of values for quantum numbers ml and ms for an electron in anatom when the n quantum number value for it is.What is the significance of these values for the orbitals ?

7. When can an endothermic process be spontaneous ? Give an example of such a process.

8. Explain any one of the following statements :

(i) The transition metals are well known for the formation of interstitial compounds.

(ii) The largest number of oxidation states are exhibited by manganese in the first series of transition elements.

9. Draw the three dimensional representations of (R)- and (S)- butan-2-ol.

10.Write chemical reaction equations to illustrate the following reactions :

(i) Williamson synthesis of ethers

(ii) Reimer-Tiemann reaction

11. Distinguish between addition polymers and condensation polymers and give one example of each class. 

Please click the link below to download pdf file of CBSE Class 12 Chemistry Question paper 2007 (3).