Which of the following hydroxy carboxylic acids undergoes dehydration easily?
A
CH2OHCH2CH2CH2COOH
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B
CH3CH(OH)CH2COOH
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C
C6H5CH|OH−COOH
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D
CH3−CH|OH−COOH
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Solution
The correct option is ACH2OHCH2CH2CH2COOH δ− or γ−hydroxy carboxylic acids readly undergo dehydration upon heating. Thus, CH2OHCH2CH2CH2COOH readily undergoes dehydration.