Chemistry

Problem

The electronic configuration of four elements are : (I)

[\text{Kr}]5s^1

(II)

[\text{Rn}]5f^{14}6d^17s^2

(III)

[\text{Ar}]3d^{10}4s^24p^5

(IV)

[\text{Ar}]3d^64s^2

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 d. FFFF

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