CBSE Sample Paper 2009
Chemistry
Class XI
- What is the lowest value of n that allows g-orbital to exist? 1
2. Calculate the mass of iron which will be converted into its oxide (Fe3O4 ) by the action of 18g of steam on it?(Atomic mass of Fe=56,O=16). 1
3. Explain why alkyl groups act as electron donating group attached to a p system. 1
4.What are reactive intermediates? How are they generated by bond fission? 1
5. Write all the quantum number values for the electron present in 3f orbital. 1
6.Define bond order. 1
7. What are representative elements? 1
8. CCl4 does not act as a Lewis acid while SiCl4 and SnCl4 act as Lewis acids. Why? 1
9. Amongst isopentane and neopentane which has higher boiling point and why? 1
10. Methane does not react with chlorine in dark. Why? 1
11. Balance following equation in basic medium by using oxidation number method or ion-electron method.
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