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All India Engineering / Architecture Entrance Examination (AIEEE)

CBSE Guess > AIEEE > AIEEE Papers > 2008 > Chemistry

AIEEE 2008 Chemistry

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Q. 1. Which one of the following is the correct statement?

  1. Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase.
  2. B2H6.2NH3 is known as 'inorganic benzene'.
  3. Boric acid is a protonic acid.
  4. Beryllium exhibits coordination number of six.

Sol: Becl2 and Alcl3 both have bridged structure in solid phase.
B3N3 H6 is known as inorganic benzene.
Boric acid is Lewis acid.
Beryllium exhibits coordination number of 4

Q. 2.

Sol:

Q. 3. The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is

Sol: The correct decreasing order of priority for the functional group of organic compounds in the IUPAC system of nomenclature is:

Q. 4. The pKa of a weak acid, HA is 4.80. The pKb of a weak base, BOH, is 4.78. The pH of an aqueous solution of the corresponding salt, BA, will be

  1. 7.01
  2. 9.22
  3. 9.58
  4. 4.79

Sol:

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