$- C = O$ shows which of the following electromeric effect:

+ E

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- E

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both

A

and

B

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none of these

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Solution

The correct option is B $- E$
$- C = O$ shows electromeric effect as the more electronegative oxygen attracts the electrons to itself as a result carbonyl carbon becomes positively charged, so the upcoming nucleophile can easily attack the positive carbon as shown above.

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Similar questions

Which of the following is/are TRUE about electromeric effect ?

Given: $F e_{(s)} \to F e^{2 +} + 2 e^{-}; E^{o} = + 0.44 V$

$P b_{(s)} \to P b^{2 +} + 2 e^{-}; E^{o} = + 0.13 V$

$A g^{+} e^{-} \to A g; E^{o} = + 0.8 V$

$C u^{2 +} 2 e^{-} \to C u; E^{o} = + 0.34 V$

Which of the following metals will oxidise iron?

a) $A g$

b) $C u$

c) $P b$

d) None of these

F e_{2} O_{3} + 3 C O \to 2 F e + 3 C O_{2}

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