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Which of the following orders of acid st...

Which of the following orders of acid strength is correct?

A

`RCOOH gt HOH gt HC -=CH gt ROH`

B

`RCOOH gt RC -= CH gt HOH gt ROH`

C

`RCOOH gt ROH gt HOH gt HC -=CH`

D

`RCOOH gt HOH gt ROH gt HC -=CH`

Text Solution

Verified by Experts

The correct Answer is:
D
Carboxylic acid is stronger than alcohol and water because after removal of proton, carboxylate ion is stabilised by resonance. Hence, correct order of acid strength is
RCOOH gt HOH gt ROH gt HC `-=` CH
Which is based upon the rate of donation of proton or strength of base, thus order of basic strength is
`barC-=CH gt R-barOgt OH^(-) gt RCOO^(-)`
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-CARBOXYLIC ACIDS AND THEIR DERIVATIVES -EXERCISE
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  2. In a act of reactions, acid yielded a product D CH(3) COOH overset (...

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  3. Which of the following orders of acid strength is correct?

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  4. In a set of the given reactions, acetic acid yields a product C. CH(...

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  5. In the following reaction , product P is R-undersetunderset(O)(||)C-Cl...

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  6. Which of the following react with benzoic acid to form enthy1 benzoate...

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  7. Reduction by LiAlH4 of hydrolysed product of an ester gives

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  8. Which one of the following esters cannot undergo self Claisen condensa...

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  9. An ester (X) with molecular formula C9 H(10) O2 was treated with exces...

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  10. Consider the following transformations CH3COOHoverset(CaCO3)toAoverset...

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  11. an ester is boiled with KOH. The product is cooled and acidified with ...

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  12. Schotten Baumann reaction is

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  13. The preparation of ethyl acetoacetate involves

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  14. Formic acid is obtained when :

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  15. Among acetic acid , phenol and n-hexanol which one of the following co...

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  16. Sodium formate on heating yields

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  17. Benzne can be obtained by heating either benzoic acid with X or phenol...

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  18. The compound formed when malonic ester is heated with urea is

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  19. Among the following the strongest acid is

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  20. Which of the following represents the correct decreasing order of acid...

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