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AP EAMCET201920 Apr 2019Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Which of the following statements is not correct?

Options

  1. AFrom ( SO ₂ ) to ( TeO ₂ ) reducing power decreases
  2. BThe order of boiling points of hydrides of (16^ th ) group elements is ( H ₂ ~S < H ₂ Se < H ₂ Te < H ₂ O )
  3. CRhombic sulphur has (S₈ ) molecules while monoclinic sulphur has (S₆ ) molecules.
  4. DThe bond angle in ozone molecule is (117^ ).

Correct answer

C. Rhombic sulphur has (S₈ ) molecules while monoclinic sulphur has (S₆ ) molecules.

Step-by-step solution

(a) Reducing power decreases from ( SO ₂ ) to ( TeO ₂ ) on moving down the group. (b) Order of boiling point of hydrides of 16th group elements are ( H ₂ ~S Thus, option (c) is incorrect.

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