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05/01/2022 3:00 pm
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PbF4, PbCl4 exist but PbBr4 and PbI do not exist because of
(a) large size of Br– and I–
(b) strong oxidising character of Pb4+
(c) strong reducing character of Pb4+
(d) low electronegativity of Br–and I–.
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05/01/2022 3:06 pm
Correct answer: (b) strong oxidising character of Pb4+
Explanation:
F and Cl are more oxidising in nature and can achieve Pb in (IV) O.S. but Br2 and I2 can not achieve Pb in (IV) O.S. secondly Pb4+ is strong in oxidising nature and in its presence, Br- and I- can not exist.