JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS

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Analyzing +4 | -1

Which of the following does not exist?

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Correct option: B

{\left[ {Kr{F_3}} \right]^ - }{\left[ {Sb{F_4}} \right]^ + }

Option B is correct because KrF2 acts as a F- donor and forms complexes with F- acceptors, thus only cationic species or Kr will be present.

More Questions from P-BLOCK ELEMENTS

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17^{\text {th }}

{O}_2

{O}_2

\mathrm{C}{\mathrm{N}^ - }

{\mathrm{N}_2}

\mathrm{C}{\mathrm{N}^ - },\mathrm{\;}{\mathrm{N}_2}

2 {Fe}^{3+}+{SO}_2+2 {H}_2 {O} \rightarrow 2 {Fe}^{2+}+{SO}_4^{2-}+4 {H}^{+}

{H}_2 {~S}_2 {O}_8

{S}={O}

{S}-{OH}

{O}-

{O}

{NH}_3

{H}_2 {SO}_4

{H}_2 {SO}_4