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Give reasons for the following: Sodiu...

Give reasons for the following:
Sodium bisulfite is used for the purification of aldehydes and ketones.

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ICSE-ALDEHYDES, KETONES AND CARBOXYLIC ACIDS-EXERCISE (PART-II DESCRIPTIVE QUESTIONS) ( SHORT QUESTIONS)
  1. Illustrate the following name reactions by giving example: Clemmense...

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  2. Give reasons for the following: Treatment of benzaldehyde with HCN g...

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  3. Give reasons for the following: Sodium bisulfite is used for the pu...

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  4. Write the steps and conditions involved in the following conversions: ...

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  5. Write the steps and conditions involved in the following conversions: ...

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  6. How would you bring about the following conversions: Propanal to but...

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  7. How would you bring about the following conversions: Benzaldehyde t...

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  8. Write the structural formulae of the following : Pinacol

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  9. Write the structural formulae of the following : Pinacolone(t-butyl...

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  10. Write the structural formulae of the following : Di-isopropyl keton...

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  11. Write the structural formulae of the following : Methyl vinyl Keton...

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  12. Dipole moments of aldehydes and ketones are higher than the alcohols. ...

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  13. Write the chemical equation when acetone reacts with ethanol.

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  14. Ethanal is more reactive towards nucleophilic addition reaction than p...

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  15. Benzaldehyde is less reactive than acetaldehyde towards nucleophilic a...

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  16. How amines are prepared from aldehydes?

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  17. Explain the following reactions : Cannizzaro reaction

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  18. Explain the following reactions : Aldol condensation

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  19. Why do aldehydes and ketones undergo nucleophilic addition reactions. ...

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  20. How will you convert formaldehyde to acetaldehyde ?

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