Acidity

Chemistry Level 2

Which of the following in most acidic?

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This is a part of my set Aniket's Chemistry Challenges . (BEST OF JEE - ADVANCED)
p-methoxy benzoic acid benzoic acid m-methoxy benzoic acid o-methoxy benzoic acid

Aniket Sanghi by Aniket Sanghi , 21, India

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1 solution

Aniket Sanghi
Mar 19, 2016

Due to the ortho effect

2 Helpful 0 Interesting 0 Brilliant 0 Confused

Ortho effect states that ortho substituted benzoic acids and anilines are more acidic than benzoic acid and aniline respectively.Elaborate on how you compared o m p positions.

Ashish R Nair - 5 years, 2 months ago

Are you absolutely sure about this? Because our chem sir said that it's not observed for methoxy group...

Nihar Mahajan - 3 years, 6 months ago

but methoxy group is not big enough to produce ortho effect!!

ortho effect could be observed if there were 2 methoxy groups in ortho position

neelesh vij - 5 years, 2 months ago

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No it is enough., if it would have been OH then it won't be enough

Aniket Sanghi - 5 years, 2 months ago

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@Aniket Sanghi But COOH being a big group , isn't OH sufficient?

Ankit Kumar Jain - 3 years, 3 months ago

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