Chemistry - PERIODIC TABLE Question with Solution | TestHub
List - I (Pair of ion) | List - II (Characteristics in given pair) |
|---|---|
(P) | (1) One of cation have nobel gas configuration |
(Q) | (2) Iodide salt is not existing for one of them |
(R) | (3) First cation in given pair has more polarizing power as compared to second |
(S) | (4) Second cation is strong reducing agent in given pair |
| (5) Both cation form amphoteric oxide |
The correct option is :
Options:
Answer:
Solution:
(P) Pb⁴⁺/Pb²⁺ → 2, 3, 5: PbI₄ does not exist due to the inert pair effect; Pb⁴⁺ has higher polarizing power due to greater charge; both form amphoteric oxides (PbO₂, PbO).
(Q) Bi⁵⁺/Bi³⁺ → 2, 3: BiI₅ does not exist because Bi⁵⁺ is strongly oxidizing; Bi⁵⁺ has higher charge and thus greater polarizing power than Bi³⁺.
(R) Sn⁴⁺/Sn²⁺ → 3, 4, 5: Sn⁴⁺ has a higher charge and more polarizing power; Sn²⁺ is a strong reducing agent; both form amphoteric oxides (SnO₂, SnO).
(S) Ca²⁺/Hg²⁺ → 1: Ca²⁺ has the stable noble gas configuration of Argon ().
Correct Option: (B)
