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Which of the following is the strongest ...

Which of the following is the strongest acid ?

A

o-methoxyphenol

B

p-methoxyphenol

C

m-methoxyphenol

D

phenol

Text Solution

Verified by Experts

The correct Answer is:
A
At m-position, `-OCH_(3)` group deos not exert its `+R` effect. Instead, it exerts its -I effect and therefore, m-methoxyphenol is the strongest acid among phenols, o-,m-or p-methoxyphenol.
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MODERN PUBLICATION-ALCOHOLS, PHENOLS AND ETHERS-OBJECTIVE TYPE QUESTIONS (MULTIPLE CHOICE QUESTIONS) (M.C.Q) (MULTIPLE CHOICE QUESTIONS with only one corrrect answer)
  1. The product P in the following reaction is

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  2. Phenol is more acidic than ethyl alcohol because

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  3. The product of Reimer-Tiemann reaction is a

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  4. Phenol overset(NaOH)rarrA underset(2")"H^(+))overset(1")" CO(2))rarr B...

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  5. Which of the following reagents cannot be used to distinguish between ...

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  6. In the following compounds : The order of acidity is

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  7. The order of reactivity of the following alcohols toward conc. HC...

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  8. Complete the following reaction

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  9. Which the following will give phenol with Cao and NaOH ?

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  11. When phenol is treated with CHCl(3) and NaOH, the product fromed is

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  12. Which of the following is the strongest acid ?

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  13. Ethers are isomeric with

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  14. When diethyl ether is treated with excess of CI(2) in the presence of ...

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  15. Ethers can be distinguished from alcohols by the following reaction :

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  16. CH(3)underset(Br)underset(|)CHCH(3) overset(alc.//KOH)to A overset("HB...

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  17. The compound which is not isomeric with diethyl ether is :

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  18. How many isomeric acyclic alcohola and ethers are possible for C(4)H(8...

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  19. Diethyl ether on heating with conc. HI gives two moles of :

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  20. The major organic product in the reaction CH(3)-O-CH(CH(3))(2)+HIrar...

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