Given below are two statements — Assertion A and Reason R:

Assertion A: Lithium halides are somewhat covalent in nature.

Reason R: Lithium possesses high polarisation capability.

Choose the most ap

Question

Given below are two statements — Assertion A and Reason R:

Assertion A: Lithium halides are somewhat covalent in nature.

Reason R: Lithium possesses high polarisation capability.

Choose the most appropriate answer:

Canvas Classes · Accepted Answer

Step 1 — Evaluate Assertion A:
Lithium halides (LiF, LiCl, LiBr, LiI) show significant covalent character compared to other alkali metal halides. This is because Li⁺ is very small → high charge density → high polarising power → distorts anion electron cloud → covalent character. A is true ✓

Step 2 — Evaluate Reason R:
Li⁺ has the smallest ionic radius among alkali metal cations → highest charge density → highest polarising power. R is true ✓

Step 3 — Is R the correct explanation?
Yes — the hig

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