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Standard XII
Chemistry
Idea of Hybridisation
Question

(CH3)2CO
Which one is correct?
  1. O ∥ CH3−C−CH3↑↑↑sp3sp2sp3
  2. O ∥ CH3−C=CH3↑↑↑sp3sp3sp3
  3. O ∥ CH3−C=CH3↑↑↑sp3sp2sp2
  4. O ∥ CH3−C=CH3↑↑↑sp2sp2sp3

A
O ∥ CH3−C=CH3↑↑↑sp2sp2sp3
B
O ∥ CH3−C−CH3↑↑↑sp3sp2sp3
C
O ∥ CH3−C=CH3↑↑↑sp3sp3sp3
D
O ∥ CH3−C=CH3↑↑↑sp3sp2sp2
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Solution
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The correct option is A O ∥ CH3−C−CH3↑↑↑sp3sp2sp3
In, CH2=C=O , carbon atom has only 4 electrons to share. So, it will form 4 bonds. Hence, only first structure is valid.

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