It is noticed that Pb ^{2+} is more stable than Pb ^{4+} but Sn ^{2+} is less stable than Sn ^{4+}. Observe the following reactions. PbO_2+Pb \rightarrow 2 PbO ; ∆_{r} G^{\circ}(1) SnO_2+Sn \rightarrow 2 SnO ; ∆_{r} G^{\circ}(2) Identify the correct set from the following [23 jan 2026 Shift 2]

Correct Answer is : ∆rG∘(1)<0;∆rG∘(2)>0

∆_r G^{\circ}(1)>0 ; ∆_r G^{\circ}(2)< 0

∆_r G^{\circ}(1)< 0 ; ∆_r G^{\circ}(2)>0

∆_{ r } G ^{\circ}(1)< 0 ; ∆_{ r } G ^{\circ}(2)< 0

∆_r G^{\circ}(1)>0 ; ∆_r G^{\circ}(2)>0

p Block Elements Part 3

Section: Chemistry

Question : 6 of 72

Marks: +1, -0

It is noticed that Pb2+ is more stable than Pb4+ but Sn2+ is less stable than Sn4+. Observe the following reactions.
‌PbO2+Pb⟶2PbO;∆rG∘(1)
‌SnO2+Sn⟶2SnO;∆rG∘(2) Identify the correct set from the following

[23 jan 2026 Shift 2]

∆rG∘(1)>0;∆rG∘(2)<0
∆rG∘(1)<0;∆rG∘(2)>0
∆rG∘(1)<0;∆rG∘(2)<0
∆rG∘(1)>0;∆rG∘(2)>0

Validate

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