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At room temperature , in the presence of...

At room temperature , in the presence of traces of conc . `H_(2)SO_(4)` , acetaldehyde polymerises to :

A

metaformaldehyde

B

metaldehyde

C

paraldehyde

D

trioxane.

Text Solution

Verified by Experts

The correct Answer is:
C
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MODERN PUBLICATION-ALDEHYDES , KETONES AND CARBOXYLIC ACIDS-Multiple Choice Questions ( Level - I )
  1. In Clemmensen 's reduction of aldehydes and ketones , the reducing age...

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  2. Benzaldehhyde reacts with ammonia to give :

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  3. At room temperature , in the presence of traces of conc . H(2)SO(4) , ...

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  4. Which of the following is most difficult to oxidise ?

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  5. With zinc amalgam and hydrochloric acid , carbonyl compounds are reduc...

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  6. Which of the following represents Wolf Kishner reduction reaction ?

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  7. Which of the following has maximum boiling point ?

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  8. Aldehydes react with ammonia in the presence of traces of acids to giv...

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  9. Aldehydes acts as :

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  10. Aldehydes having no alpha hyfrogen atoms undergo :

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  11. Cannizzaro's reaction involves :

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  12. Benzyl alcohol is obtained from benzaldehyde by :

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  13. Hydrogenation of benzoyl chloride in the presence of Pd on BaSO(4) giv...

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  14. Which of the following compound will not give yelow ppt with iodine an...

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  15. The aldol condensation of acetaldehyde results in the formation of :

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  16. When acetaldehyde is treated with phenyl hydrazine , the medium should...

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  17. Aldol condensation of acetaldehyde involves the formation of which of ...

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  18. If formaldehyde and KOH are heated , the product obtained is :

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  19. Benzaldehyde can be prepared by the oxidation of toluene by :

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  20. Identify Z in the following series, CH(2)=CH(2)overset(HBr)(to)Xover...

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