1.Which of the following esters CANNOT undergo Claisen self-condensation?a.CH3CH2CH2CH2COOC2H5\text{CH}_3\text{CH}_2\text{CH}_2\text{CH}_2\text{COOC}_2\text{H}_5CH3CH2CH2CH2COOC2H5b.C6H5COOC2H5\text{C}_6\text{H}_5\text{COOC}_2\text{H}_5C6H5COOC2H5c.C6H11CH2COOC2H5\text{C}_6\text{H}_{11}\text{CH}_2\text{COOC}_2\text{H}_5C6H11CH2COOC2H5d.C6H5CH2COOC2H5\text{C}_6\text{H}_5\text{CH}_2\text{COOC}_2\text{H}_5C6H5CH2COOC2H5Login to continueOnly logged in users canattempt or see the solution.
