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Geetanjali Faraz Korpal
Asked: 2022-11-04T16:12:51+05:30 In:

Assertion : In the species, `S_(4)O_(6)^(2-)` each of the two extreme sulphurs exhibits oxidation state of +5 and the two middle sulphurs as zero.
Reason : The average of four oxidation numbers of sulphurs of the `S_(4)O_(6)^(2-)` is 2.5.
A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Assertion : In the species, `S_(4)O_(6)^(2-)` each of the two extreme sulphurs exhibits oxidation state of +5 and the two middle sulphurs as zero.
Reason : The average of four oxidation numbers of sulphurs of the `S_(4)O_(6)^(2-)` is 2.5.
A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.
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  1. Correct Answer – B
    The structure of `S_(4)O_(6)^(2-)` is
    `.^(-)O-underset(underset(O)(“||”))overset(overset(O)(” ||+5″))(“S”)-overset(0)S-overset(0)S-underset(underset(O)(“||”))overset(overset(O)(” ||+5″))(“S”)-O^(-)`
    Structural parameters reveal that the element for whom fractional oxidation state is realised, is present in different oxidation states and different oxidation states are due to different bonding situations.

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