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Question

Select the correct statements among the following for sulphuric acid.

(I) It has a high boiling point and viscosity.
(II) There are two types of bond lengths in its bivalent anion.
(III) pπdπ bonding between sulphur and oxygen is observed.
(IV) Sulphur has the same hybridization that is of boron in diborane.

A
II and III only
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B
II, III and IV only
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C
I, III and IV only
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D
III and IV only
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Solution

The correct option is C I, III and IV only
The correct statements for sulphuric acids are -
(I) It has a high boiling point (338oC) and viscosity (sp. gr 1.8). The hydrogen bonding results in the molecular association.
(II) There are two types of bond lengths in the neutral molecule. However, in its bivalent anion, only one type of bond length is observed due to resonance.
(III) pπdπ bonding between sulfur and oxygen is observed.
(IV) Sulfur has the same hybridization (sp3) that is of boron in diborane. This results in tetrahedral geometry with a bond angle of 109.5o.

Therefore, the correct option is C

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