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An organic compound A with molecular for...

An organic compound A with molecular formula `C_8H_8O` gives positive DNP and iodoform tests. It does not reduce Tollen’s or Fehling’s reagent and does not decolourise bromine water also. On oxidation with chromic acid `(H_2CrO_4)`, it gives a carboxy acid (B) with molecular formula `C_7H_6O_2`. Deduce the structure of A and B.

A

2-ethylbenzaldehyde

B

2-methylbenzaldehyde

C

acetophenone

D

3-methylbenzaldehyde

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MODERN PUBLICATION-ALDEHYDES, KETONES AND CARBOXYLIC ACIDS-EXERCISE
  1. Complete the following reaction:-

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  2. Compound ‘A’ with molecular formula C4H9Br is treated with aq. KOH sol...

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  3. An organic compound A with molecular formula C8H8O gives positive DNP ...

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  4. Which of the following compounds would undergo aldol condensation, whi...

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  5. Write the structure of 2-methylpenten-3-one.

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  6. The ketone will not be formed by

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  7. The formation of cyanohydrin from a ketone is an example of

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  8. the product of the above reaction is

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  9. A mixture of benzaldehyde and formaldehyde when treated with 50% NaOH ...

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  10. The major products obtained during ozonolysis of 2,3-dimethyl-lbutene ...

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  11. Amongst the following compounds, the one that will not respond to Cann...

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  12. Draw the structure of simolest alkene.

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  13. Amongst the following compounds the one which would not respond to iod...

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  14. What is the reagent used in Etard reaction?

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  15. Which of the following compound when treated with dibenzyl cadmium yie...

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  16. The reagent used in Wolff-Kishner reduction is:

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  17. Which one of the following involves nucleophilic addition?

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  18. Benzene carbaldehyde is reacted with concentrated NaOH solution to giv...

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  19. An organic compound X is oxidised by using acidified K2Cr2O7 solution....

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  20. Predict the product (B) in the following sequence of reactions: Ethylb...

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