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Explain the order of strength of the following acids. C Cl_(3)COOHgtCHCl_(2)COOHgtCH_(2)ClCOOHgtCH_(3)COOH |
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Answer» Solution :`C Cl_(3)COOHgtCHCl_(2)COOHgtCH_(2)ClCOOHgtCH_(3)COOH` : (a) Any factor that weakens the -COOH bond will facilitate the cleavage to release `H^(+)` more easily. The degree of IONISATION increases and acid becomes relatively a stronger acid. (b) The acid strength increases with increase in elecronegativity of substituents. (c) In MONOCHLORO ACETIC acid, the -I effect of chlorine increases the strength of the acid. (d) Thus monochloro acetic acid is stronger than acetic acid is GREATER than monochloro acetic acid. 
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