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AIIMS 2011
Exam
AIIMS
Year
2011
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

AIIMS 2011 · Chemistry · Chemical Bonding and Molecular Structure

Assertion : The formal oxidation no. of sulphur in Na_2 ~S_4 O_6 is...

Assertion : The formal oxidation no. of sulphur in Na2 S4O6\mathrm{Na}_2 \mathrm{~S}_4 \mathrm{O}_6 is 2.5 . Reason : Two S-atoms are not directly linked with O\mathrm{O}-atoms.Assertion : The formal oxidation no. of sulphur in Na_2 ~S_4 O_6 is 2.5 . Reason : Two S-atoms are not directly linkedAssertion : The formal oxidation no. of sulphur in Na_2 ~S_4 O_6 is 2.5 . Reason : Two S-atoms are not directly linked

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

Assertion : The formal oxidation no. of sulphur in Na_2 ~S_4 O_6 is 2.5 . Reason : Two S-atoms are not directly linked
Formal oxidation number of sulphur =2×5+2×04=\frac{2 \times 5+2 \times 0}{4}=2.5
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