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Questions  

Which of the fallowing has pairing  with I-  has maximum melting point?

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By Expert Faculty of Sri Chaitanya
a
Na+
b
K+
c
Rb+
d
Cs+

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detailed solution

Correct option is D

Number of shells increases size increases down the group in alkali metals.cation size∞1polarizing power∞ionic charecter∞melting point ∞1covalent character, hence Cs+ ion has pairing   with I- has maximum melting point.

ctaimg

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Which of the fallowing has minimum hydrated size in aqueous state?

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