Delocalised molecular orbitals are found in:

H_{2}

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H S^{-}

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C H_{4}

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C O_{3}^{2 -}

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Solution

The correct option is D $C O_{3}^{2 -}$
All other species have simple sigma bonds but due to presence of pi bond, $C O_{3}^{- 2}$ have delocalised orbitals

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Similar questions

The volumes of gases $H_{2}, C H_{4}, C O_{2} a n d N H_{3}$ absorbed by 1 g of charcoal at 288 K are in the order:

H_{2}^{+} is 0.5.

H_{2} .

Question 1
Calculate the molecular masses of $H_{2}, O_{2}, C l_{2}, C O_{2}, C H_{4}, C_{2} H_{6}, C_{2} H_{4}, N H_{3}, C H_{3} O H$ .

C l_{2} (a q) + H_{2} S (a q) \to S (s) + 2 H^{+} (a q) + 2 C l^{-} (a q)

= k [C l_{2}] [H_{2} S]

i s / a r e

C l_{2} + H_{2} S \to H^{+} + C l^{-} + C l^{+} + H S^{-}

C l^{+} + H S^{-} \to H^{+} + C l^{-} + S

H_{2} S \Leftrightarrow H^{+} + H S^{-}

C l_{2} + H S^{-} \to 2 C l^{-} + H^{+} + S

σ (1 s) < σ^{*} (1 s) < σ (2 s) < σ^{*} (2 s) < [π (2 p_{y}) π (2 p_{z})] < σ (2 p_{x}) < [π^{*} (2 p_{y}) π^{*} (2 p_{z})] < σ^{*} (2 p_{x})

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