Q.
The electronic configuration of four elements are (i) [Xe]6s2 (ii) [Xe]4f145d16s2 (iii) [Ar]3d104s24p5 (iv) [Ar]3d74s2 Which one of the following statements about these elements is not true
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a
(i) is a strong reducing agent
b
(ii) is a d block element
c
(iii) has high negative electron gain enthalpy
d
(iv) show variable oxidation states
answer is B.
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Detailed Solution
It is Lu, a lanthanide
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