CBSE Class 12 Capital Market Operations Question Paper 2019 with Answer Key (February 22)

CBSE CLASS XII Questions

• 1.

  Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
  (b) p-Hydroxyphenethyl alcohol + HBr

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• 2.

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

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• 3.

  Why are magnesium blocks attached to iron water pipelines?

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• 4.

  61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

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• 5.

  Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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• 6.

  Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

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