1. Tardigrade
  2. Question
  3. Chemistry
  4. The electronic configuration of four elements are: (I) [.Kr].5s1 (II) [.Rn].5f- 146d17s2 (III) [.Ar].3d104s24p5 (IV) [.Ar].3d64s2 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.) ?

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Q. The electronic configuration of four elements are :
(I) $\left[\right.Kr\left]\right.5s^{1}$
(II) $\left[\right.Rn\left]\right.5f^{- 14}6d^{1}7s^{2}$
(III) $\left[\right.Ar\left]\right.3d^{10}4s^{2}4p^{5}$
(IV) $\left[\right.Ar\left]\right.3d^{6}4s^{2}$
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 $\left(\right.T\left.\right)$ or False $\left(\right.F\left.\right)$ ?

NTA AbhyasNTA Abhyas 2020

Solution:

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