All India Engineering / Architecture Entrance Examination (AIEEE)

AIEEE 2010 Chemistry

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Q. 5. If sodium sulphate is considered to be completely dissociated into cations and anions in aqueous solution, the change in freezing point of water (kf = 1.86 K kgmol-1), when 0.01 mol of sodium sulphate is dissolved in 1 kg of water, is (Kf = 1.86 K kg mol-1)

  1. 0.0372 K
  2. 0.0558 K
  3. 0.0744 K
  4. 0.0186 K

Sol :

Answer: (2)

Q. 6 . In the chemical reactions,
9Q

The compounds ‘A’ and ‘B’ respectively are

  1. nitrobenzene and fluorobenzene.
  2. phenol and benzene.
  3. benzene diazonium chloride and fluorobenzene.
  4. nitrobenzene and chlorobenzene.

Sol :
9Sol

Answer: (3)

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