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Chemistry
Assertion: The formal oxidation no. of sulphur in Na2S4O6 is 2.5. Reason: Two S-atoms are not directly linked with O-atoms.
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Q.
Assertion:
The formal oxidation no. of sulphur in $Na_2S_4O_6$ is 2.5.
Reason:
Two S-atoms are not directly linked with O-atoms.
AIIMS
AIIMS 2011
Redox Reactions
A
If both assertion and reason are true and reason is the correct explanation of assertion
33%
B
If both assertion and reason are true but reason is not the correct explanation of assertion
33%
C
If assertion is true but reason is false
26%
D
If both assertion and reason are false
8%
Solution:
Formal oxidation number of sulphur
$=\frac{2 \times 5+2 \times 0}{4}=2.5$
