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Question Bank of Chemistry for Class 12 CBSE Board 2015

A huge collection of chemistry question for class 12 CBSE board for 2015 Board Exams

CHAPTER−1
Q.1 Why is Frenkel defect defect not found in pure alkali metal halides?
Q.2 Although Si is an insulator, then how does it behave as semiconductor upon heating ?
Q.3 In the mineral ‘Spinel’ having the formula MgAl O2 4, oxide ions are in ccp arrangement,
 (a) What percentage of tetrahedral void is occupied by 2 Mg + ions?
 (b) What percentage of octahedral void is occupied by 3 Al + ions ?
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…ALL the best for CBSE BOARD EXAMS 2015.
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2 Comments

  1. Shadab Sayed says:

    Hii

    When will CBSE 10th Result 2015 Declare.. please tell me. i m worried for my result.

    Like

  2. CBSE Declare its class 10th result after 20 MAY …….So you have to be Patience dear……Good Luck for your result.. 🙂

    Like

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