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How will you prepare benzaldehyde by Eta...

How will you prepare benzaldehyde by Etard's reaction?

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The correct Answer is:
Toluene is treated with `CrO_3` in acetic anhydride and then hydrolysed (see theory for equation)
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A N EXCEL PUBLICATION-ALDEHYDE, KETONES AND CARBOXYLIC ACIDS-QUESTION BANK
  1. Write the reactions of carboxylic acid with the following reagents. (W...

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  2. Write a test to distinguish between aldehydes and ketones.

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  3. How will you prepare benzaldehyde by Etard's reaction?

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  4. How will you bring about the following conversions? (Write the chemica...

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  5. How will you bring about the following conversions? (Write the chemica...

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  6. How will you bring about the following conversions? (Write the chemica...

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  7. Aldehydes, Ketones are the compounds having >C=O group. Choose the IUP...

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  8. Complete the reaction: 2HCHO+Con KOHoverset(Delta)rarr

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  9. Complete the reaction: CH3CHOoverset(dil.NaOH)rarr

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  10. Complete the reaction: CH3CHO+H2N-NH2rarr

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  11. Complete the reaction: C6H5COCH3underset(HCl)overset(Zn//Hg)rarr

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  12. Aldehydes, Ketones and acids contain >C=O group. Choose the IUPAC name...

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  13. Complete the reaction: CH3CH2COOHoverset(LiAlH4//Ether)rarr

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  14. Complete the reaction: CH3CH2COOH+SOCl2rarr

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  15. Complete the reaction: CH3CH2COOHoverset(Br2//Red P)rarr

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  16. Complete the reaction: CH3CH2COOH+CH3OHoverset(H^+)<implies

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  17. The product obtained when benzene is treated with carbon monoxide and ...

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  18. How will you carry out the following conversion? CH3CH2COOHrarrCH3CH2C...

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  19. How will you carry out the following conversions? (iv) CH3COOHrarrCH3C...

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  20. Explain the following : Esterification

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