Solve 2012 CBSE-Chemistry Question Paper (Set-3) given here.
1. What is meant by 'doping' in a semiconductor?
2. What is the role of graphite in the electrometallurgy of aluminium?
5. Draw the structural formula of 2-mcthylpropan-2-ol molecule.
6. Arrange the following compounds in an increasing ordcr of thcir reactivity in nucleophilic addition reactions: ethanal, propanal, propanone, butanone.
8. Define the term, 'homopolymerisation' given an example.
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