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Explain the following (a) it is n...

Explain the following
(a) it is necessary to control the pH during the reaction of aldehydes or ketons with ammonia derivations .
(b ) Benzophene does not react with sodium bisulphite
(c ) Acetaldehyde gives aldol condensation while formaldehyde does not .
(d ) HCHO reacts with nHCN faster than ` CH_3 CHO`
(e ) Aldehydes and ketons undergoes nucleophilic addition reactions .

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MODERN PUBLICATION-ALDEHYDES ,KETONES AND CARBOXYLIC ACIDS-REVISION EXERCISES (OBJECTIVE QUESTIONS - SHORT ANSWER QUESTIONS )
  1. How does differ from group in chemical reactions ?

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  2. Explain the following (a) it is necessary to control the pH ...

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  3. Distinguish between the following pairs: (i) Propanal and propanone ...

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  4. An organic compound P(C2 H4 O) reduces Tollen's reagent. On oxidation ...

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  5. (a) What are Claisen-Schmidt condensation and Kolbe's reaction? Give o...

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  6. Give the chemical equation for each of the following reactions: (i) W...

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  7. Identify the product of the following reactions : (Any two ) ...

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  8. (a)what are Etard reaction and Gattermann Koch reaction ? Give o...

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  9. Predict the products of the following reactions ( i) CH3 - under...

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  10. (a) How will you distinguish between CH3 CHO and CH3 overse...

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  11. (a) Why are the boiling points of carboxlic acids higher than ...

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  12. Describe the following: (a) Wolff Kishner reduction (b) Clemmens...

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  13. Convert benzene into (a) Benzaldehyde (b) Benzoic acid (c) Aceto...

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  14. (a) What is aldol-condensation reaction ? Write the reaction involved ...

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  15. (a) (i) Give the reaction involved in (a) Wolff-Kishner reduction (b...

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  16. (b) (i) Why do aldehydes and ketones undergo a large number of nucleop...

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  17. Write short notes on the following: (a) Reimer-Tiemann reaction. (b...

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  18. Write the following reactions : (a) Haloform reaction (b) Gatterma...

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  19. (i) Write Cannizzaro reaction. (ii) Write aldol condensation. (iii...

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  20. (i) Write Hell-Volhard-Zelinsky reaction. (ii) Write cross aldol con...

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