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JEE Main202431 Jan 2024Evening ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Choose the correct statements from the following A. All group 16 elements form oxides of general formula E O 2 and E O 3 where E = S , S e , T e and P o . Both the types of oxides are acidic in nature. B. T e O 2 is an oxidising agent while S O 2 is reducing in nature. C. The reducing property decreases from H 2 S to H 2 T e down the group. D. The ozone molecule contains five lone pairs of electrons. Choose the corre

Options

  1. AA and D only
  2. BB and C only
  3. CC and D only
  4. DA and B only

Correct answer

D. A and B only

Step-by-step solution

(A) All group 16 elements form oxides of the E O 2 and E O 3 type where E = S , S e , T e or P o . And these oxides produces acids on hydrolysis. (B) S O 2 is reducing while T e O 2 is an oxidising agent. An oxidising agent is a substance that causes oxidation by accepting electrons; therefore, it gets reduced. A reducing agent is a substance that causes reduction by losing electrons; therefore, it gets oxidised. (C) The reducing property increases from H 2 S to H 2 T e down the group. This is because the bond ener

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