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The electronic configuration of four elements are :
(I) \( [\mathrm{Kr}] 5 s^{1} \)
(II) \( [\mathrm{Rn}] 5 f^{14} 6 d^{1} 7 s^{2} \)
\( \mathrm{P} \)
(III) \( [\mathrm{Ar}] 3 d^{10} 4 s^{2} 4 p^{5} \)
(IV) \( [\mathrm{Ar}] 3 d^{6} 4 s^{2} \)
W
Consider the following statements :
(i) I shows variable oxidation state
(ii) II is a \( d \)-block element
(iii) The compound formed between I and III is covalent
(iv) IV shows single oxidation state
Which statement is True (T) or False (F)?
(a) FTFF
(b) FTFT
(c) FFTF
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