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What are the hydridised states of carbon...

What are the hydridised states of carbon atoms in the following compounds ?
(i) `CH_(2)=C=O" "`(ii) `CH_(3)CH=CH_(2)" "`(iii) `(CH_(3))_(2)C=O`
(iv) `CH=CH_(2) CN" "`(v) `C_(6)H_(6)`

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Verified by Experts

(i) `overset((sp^(2)))(CH_(2))=overset((sp))(C)=O" "`(ii) `overset((sp^(3)))(CH_(3))-overset((sp^(2)))(CH)=overset((sp^(2)))(CH_(2))" "`(iii)
(iv) `overset((sp^(2)))(CH_(2))=overset((sp^(2)))(CH)-overset((sp))(C) equiv N" "`(v)
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Knowledge Check

  • The order of decreasing stability of the following carbanions is (i) (CH_(3))_(3)C^(-) (ii) (CH_(3))_(2)CH^(-) (iii) CH_(3)CH_(2)^(-) (iv) C_(6)H_(5)CH_(2)^(-)

    A
    (i)gt(ii)gt(iii)gt(iv)
    B
    (iv)gt(iii)gt(ii)gt(i)
    C
    (iv)gt(i)gt(ii)gt(iii)
    D
    (iii)gt(ii)gt(i)gt(Iv)

  • What will be the increasing order of the stability of the following alkenes? i) H_(2)C=CH_(2) ii) CH_(3)CH=CH_(2) iii) CH_(3)CH_(2)CH=CH_(2) iv) (CH_(3))_(2)CHCH=CH_(2) v) (C)CH=CH_(2)

    A
    `I lt IV lt III lt II lt V`
    B
    `V lt IV lt III lt II lt I`
    C
    `V lt I lt IV lt III lt II`
    D
    `IV lt III lt II lt V lt I`
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