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AIIMS 201926 May
Exam
AIIMS
Year
2019
Date
26 May
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

AIIMS 2019 · 26 May · Chemistry · Chemical Bonding and Molecular Structure

Assertion : S_2 O_7^ 2- and Cr_2 O_7^ 2- both exist. Reason : Both...

Assertion : S2O72−\mathrm{S}_2 \mathrm{O}_7^{2-} and Cr2O72−\mathrm{Cr}_2 \mathrm{O}_7^{2-} both exist. Reason : Both have same valence electrons.Assertion : S_2 O_7^ 2- and Cr_2 O_7^ 2- both exist. Reason : Both have same valence electrons.Assertion : S_2 O_7^ 2- and Cr_2 O_7^ 2- both exist. Reason : Both have same valence electrons.

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

B. If both assertion and reason are true but reason is not the correct explanation of assertion.

Step-by-step solution

Assertion : S_2 O_7^ 2- and Cr_2 O_7^ 2- both exist. Reason : Both have same valence electrons.
Assertion : S_2 O_7^ 2- and Cr_2 O_7^ 2- both exist. Reason : Both have same valence electrons.
Both having same structure and same valance electrons.
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