JEE · NEET Previous Year Question

Given below are two statements:
Statement (I) : Oxygen being the first member of group 16 exhibits only -2 oxidation state.
Statement (II) : Down the group 16 stability of +4 oxidation state decreases and +6 oxidation state increases.
In the light of the above statements, choose the most appropriate answer from the options given below:

Topic: JEE PYQ

Answer: C. Full step-by-step solution below.

  1. AStatement I is correct but Statement II is incorrect
  2. BBoth Statement I and Statement II are correct
  3. CBoth Statement I and Statement II are incorrect
  4. DStatement I is incorrect but Statement II is correct

Correct answer: C

Solution

(c) Statement-I: Oxygen can have oxidation state from
-2 to +2 , so statement I is incorrect
Statement- II: On moving down the group stability of +4 oxidation state increases whereas stability of +6 oxidation state decreases down the group, according to inert pair effect.
So both statements are wrong.

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