Choose the correct statements from the following A. All group 16 elements form oxides of general formula $$\mathrm{EO}_{2}$$ and $$\mathrm{EO}_{3}$$ where $$\mathrm{E}=\mathrm{S}, \mathrm{Se}, \mathrm{Te}$$ and Po. Both the types of oxides are acidic in nature. B. $$\mathrm{TeO}_{2}$$ is an oxidising agent while $$\mathrm{SO}_{2}$$ is reducing in nature. C. The reducing property decreases from $$\mathrm{H}_{2} \mathrm{~S}$$ to $$\mathrm{H}_{2} \mathrm{Te}$$ down the group. D. The ozone molecule contains five lone pairs of electrons. Choose the correct answer from the options given below:

JEE Main · 2024 · 31 Jan 2024 · Shift 2 · p-Block Elements

Choose the correct statements from the following
A. All group 16 elements form oxides of general formula

EO_{2}

and

EO_{3}

where

E = S, Se, Te

and Po. Both the types of oxides are acidic in nature.
B.

TeO_{2}

is an oxidising agent while

SO_{2}

is reducing in nature.
C. The reducing property decreases from

H_{2} S

H_{2} Te

down the group.
D. The ozone molecule contains five lone pairs of electrons.
Choose the correct answer from the options given below:

(A)A and D only
(B)B and C only
(C)C and D only
(D)A and B only✓ Correct

Answer: (D)

Solution

A: all Group 16 elements S, Se, Te and Po form

E O_{2}

and

E O_{3}

type oxides, and both types are acidic in nature — true.

B:

S O_{2}

has sulfur in the +4 state, which is readily oxidized to +6, so

S O_{2}

acts as a reducing agent;

Te O_{2}

, with the heavier, more metallic tellurium, instead acts as an oxidizing agent — true.

C: down Group 16, the H–E bond becomes progressively weaker, making the hydride release

H^{+}

/electrons more easily, so reducing power actually increases from

H_{2} S

H_{2} Te

, not decreases — false.

D: ozone is a bent, resonance-stabilized molecule; a full Lewis structure accounting for both resonance forms places two lone pairs on each terminal oxygen plus one lone pair on the central oxygen, giving six lone pairs in total, not five — false.

Only A and B are correct.

Structure Ozone structure — Ozone structure

JEE Main · 2024 · 31 Jan 2024 · Shift 2 · Single correct option

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JEE Main · 2024 · 31 Jan 2024 · Shift 2 · p-Block Elements

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