JEE Main Chemistry question

Statement 1: Oxalates and carbonates of lanthanides are almost insoluble in water Statement 2: Salts of lanthanides usually contain water of crystallisation

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for AssertionCorrect
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (B)

Solution

Both statements are independently true facts about the lanthanides: their oxalates and carbonates are indeed almost insoluble in water (behaving much like the analogous Group 2 salts), and their soluble salts commonly crystallise with water of hydration. However, the

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Question ID VK-147466