MCQ
The compound buta $-1,2-$ diene has
  • A
    only $sp\,-$ hybridized carbon atom
  • B
    only $sp^2\,-$ hybridized carbon atom
  • C
    both $sp-$ and $sp^2\,-$ hybridized carbon atoms
  • $sp, sp^2-$ and $sp^3\,-$ hybridized carbon atoms

Answer

Correct option: D.
$sp, sp^2-$ and $sp^3\,-$ hybridized carbon atoms
d
Buta$- 1,2 -$diene is

$\mathop {C{H_2}}\limits_{s{p^2}}  = \mathop C\limits_{sp}  = \mathop {CH}\limits_{s{p^2}}  - \mathop {C{H_3}}\limits_{s{p^3}} $

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