CBSE Class 12 Chemistry Question Paper 2012

CBSE CLASS XII Questions

• 1.

  Why is o-nitrophenol more acidic than o-methoxyphenol?

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• 2.

  What are reducing sugars?

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• 3.

  Write mechanism of acid dehydration of ethanol to ethene.

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• 4.

  On hydrolysis, which of the following carbohydrates gives only $\mathrm{\beta}$-glucose ?

  • Starch
  • Sucrose
  • Maltose
  • Cellulose
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• 5.

  Write any two fat soluble vitamins.

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• 6.

  Vitamin $B_{12}$ is a complex compound of :

  • $Fe^{2+}$
  • $Mg^{2+}$
  • $Co^{3+}$
  • $Cu^{2+}$
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