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CBSE Class 12th Chemistry question paper 2012 Set-3

Sep 25, 2012 16:38 IST

Solve 2012 CBSE-Chemistry Question Paper (Set-3) given here.

1. What is meant by 'doping' in a semiconductor?

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2. What is the role of graphite in the electrometallurgy of aluminium?

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5. Draw the structural formula of 2-mcthylpropan-2-ol molecule.

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6. Arrange the following compounds in an increasing ordcr of thcir reactivity in nucleophilic addition reactions: ethanal, propanal, propanone, butanone.

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8. Define the term, 'homopolymerisation' given an example.

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5 Comment

pradeep bartwal,

chemister 12 ka 2012 ka paper


take it


needed computer science sample papers before approach of exams please


i need current syllabus based unsolved question papers of class Xii physics, chemistry & maths. for 2012-13 exams.

R P Rajak,

I need current syllabus of physics and chemistry question papers and answer for preparation of xii final examination 12-13

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