Chemistry · Group 13 to Group 18 Elements
Assertion: Thallium (III) hydroxide is highly soluble in water. Reason: Thallium
Assertion: Thallium (III) hydroxide is highly soluble in water. Reason: Thallium (III) hydroxide is the most basic among 13th group hydroxides.
- A. Assertion is True, Reason is True, Reason is a correct explanation of Assertion
- B. Assertion is True, Reason is True, Reason is not a correct explanation of Assertion
- C. Assertion is True, Reason is False
- D. Assertion is False, Reason is True
Step-by-step solution
Thallium(III) hydroxide (Tl(OH)3) is sparingly soluble in water, not highly soluble, so the assertion is false. Basic character of group 13 hydroxides increases down the group, with Tl(OH)3 being the most basic, so the reason is true. Thus, option D is correct.
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