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NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

Point out the incorrect statement among the following?

Options

  1. AThe oxidation state of oxygen is + 2 in O F 2 .
  2. BAcidic character follows the order H 2 O < H 2 S < H 2 S e < H 2 T e .
  3. CThe tendency to form multiple bonds increases in moving down the group from sulphur to tellurium (towards C an
  4. DSulphur has a strong tendency to catenate while oxygen shows this tendency to a limited extent.

Correct answer

C. The tendency to form multiple bonds increases in moving down the group from sulphur to tellurium (towards C an

Step-by-step solution

Multiple bonds formation tendency with carbon and nitrogen decreases from sulphur to tellurium. C S 2 ( S = C = S ) is moderately stable. CSe 2 (Se = C = Se) decomposes readily whereas, C T e 2 ( T e = C = T e ) does no exist.

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