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In which of the following pair size of I element is higher than II element ?

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By Expert Faculty of Sri Chaitanya
a
Sc, Zn
b
Sc, La
c
Cu, Ag
d
Hf, La

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detailed solution

Correct option is A

Sc>Zn in size because in d-block element moving L⟶RZeff ↑ ∴ size ↓
ctaimg

ctaimg

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