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The enolic form of acetone contains...

The enolic form of acetone contains

A

9 sigma bonds, 1 pi bond and 2 lone pairs

B

8 sigma bonds, 2 pi bond and 2 lone pairs

C

10 sigma bonds, 1 pi bond and 1 lone pairs

D

9 sigma bonds, 2 pi bond and 1 lone pairs

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The correct Answer is:
A
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OP TANDON-ALDEHYDES AND KETONES -OBJECTIVE QUESTIONS (LEVEL -A)
  1. Paraldehyde is formeed by the polymerisation of:

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  2. Which of the following is used as a hypnotic?

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  3. The enolic form of acetone contains

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  4. The formation of cyanohydrin from ketone is an example of :

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  5. Tri chloro acetaldehyde was subjected to Cannizzaro's reaction by usin...

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  6. A compound (A) has a molecular formula C(2)Cl(3)OH. It reduces Fehling...

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  7. The compound is a condensation product. It is obtained either by tr...

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  8. An organic compound 'X' having molecular formula C(5)H(10)O yield phen...

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  9. Ethyl methyl ketone on treatement with a solution of sodium hypochlor...

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  10. If formaldehyde and KOH are heated, then we get

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  11. Wolff-Kishner reduction is :

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  12. A compound X neither reacts with soidum displacing hydrogen nor with P...

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  13. The aldol condensationof acetaldehyde results in the formation of :

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  14. Match the following lists : {:((A),"Grignard reagent",(1)H(2)//Pd-Ba...

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  15. Enthanal reacts with alkali to give 3-hydroxybutanal. The reacation is...

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  16. Arrange the following compounds in increasing order of their reactivit...

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  17. Clemmensen's reduction will convert cyclohexanone into:

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  18. For obtaining butan-2-one from acetyl chloride, which of the following...

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  19. To distinguish between 2-pentanone and 3-pentanone which reagent can b...

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  20. The final product (Y) formed in the reaction

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