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Question

The total number of Bond pairs around Sulphur and total number of lone pair on oxygen atom in Lewis structure sulphate Ion are respectively.

A
4, 10
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B
8, 12
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C
12, 4
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D
6, 12
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Solution

The correct option is A 4, 10
The Lewis structure for the sulfate ion consists of a central sulfur atom with four single bonds to oxygen atoms. This yields the expected total of 32 electrons. Since the sulfur atom started with six valence electrons, two of the S-O bonds are coordinate covalent.



Hence , correct answer is 4,12.

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