JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS

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Which of the following has no action with starch solution?

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Correct option: A

{F_2}

and

C{l_2}

Option A (

{F_2}

and

C{l_2}

) is correct because fluorine and chlorine react with starch solution differently than bromine and iodine.

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17^{\text {th }}

{O}_2

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

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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}

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{NH}_3

{H}_2 {SO}_4

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