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Explain why pK(a) of methanoic acid is l...

Explain why `pK_(a)` of methanoic acid is lower than that of ethanoic acid.

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The pK_a value of formic acid is smaller than that of acetic acid.

Account for the following : (a) Aromatic carboxylic acids do not undergo Friedel-Crafts reaction. (b) pK_(a) value of 4-nitrobenzoic acid is lower than that of benzoic acid .

Assertion: The pK_(a) of acetic acid is lower than that of phenol. Reason : Phenoxide ion is more resonance sabilised.

Assertion:The pK_(a) of acetic acid is lower than that of phenol. Reason:Phenoxide ion is more resonance stablised.

PRADEEP-ALDEHYDES, KETONES AND CARBOXYLIC ACIDS -ADDITIONAL QUESTIONS (SHORT ANSWER QUESTIONS)
  1. Formic acid is stronger acid than acetic acid. Explain.

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  2. (i) Explain why pK(a) value of chloroacetic acid is lower than pK(a) v...

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  3. Explain why pK(a) of methanoic acid is lower than that of ethanoic aci...

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  4. State reasons for the following: (i) Monochloroethanoic acid has a h...

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  5. Out of methanoic acid and ethanoic acid, which has higher pK(a) value ...

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  6. Justify: Dichloroacetic acid is a stronger acid than acetic acid.

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  7. Compare the acid strengths of the following: (i) Formic acid (ii) Ac...

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  8. Arrange the following compounds in increasing order of their acidity: ...

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  9. Although phenoxide ion has more number of resonance structures than ca...

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  10. Why is carboxylic acid a stronger acid than phenol ?

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  11. What happens when acetic acid is treated with (i) NaHCO(3) (ii) Zn m...

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  12. Write balanced chemical equations for the following reactions: (i) T...

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  13. How will you obtain trichloroacetic acid from acetic acid?

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  14. Convert (i) RCOOH to RCOCl (ii) CH(3)CH(2)COOH to CH(3)CH(2)Br.

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  15. What is ammonolysis of esters? Explain.

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  16. What is esterification? Explain the mechanism of esterification of car...

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  17. How will you convert : (i) Benzoic acid to benzaldehyde (ii) Acetoph...

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  18. Write the products of the following reactions: (i) CH(3)COONa overse...

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  19. What happens when: (i) sodium acetate is heated with soda-lime (ii) ...

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  20. Write short notes on the following: (i) Kolbe's electrolytic reactio...

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