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A hydrocarbon A, adds one mole of hydrogen in presence of platinum catalyst to form n-hexane when A is oxidised vigorously with KMnO_4 , a single carboxylic acid containing three carbon atoms isolated . Give the structure of A and explain.

Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :(i)<a href="https://interviewquestions.tuteehub.com/tag/since-644476" style="font-weight:bold;" target="_blank" title="Click to know more about SINCE">SINCE</a> the hydrocarbon A adds one mole of `H_2` in presence of Pt to form n-hexane, <a href="https://interviewquestions.tuteehub.com/tag/therefore-706901" style="font-weight:bold;" target="_blank" title="Click to know more about THEREFORE">THEREFORE</a>, A must be an hexene. <br/> (ii)Since A on vigorous oxidation with `KMnO_4` gives a single carboxylic acid containing three carbon atoms, therefore A must be a symmetrical hexene, i.e., hex-3-ene. <br/> `<a href="https://interviewquestions.tuteehub.com/tag/underset-3243992" style="font-weight:bold;" target="_blank" title="Click to know more about UNDERSET">UNDERSET</a>"Hex-3-ene (A)"(CH_3CH_2CH=CHCH_2CH_3) underset(KMnO_4)overset"[O]"to underset"Propionic acid"(2CH_3CH_2COOH)` <br/> Thus, the <a href="https://interviewquestions.tuteehub.com/tag/given-473447" style="font-weight:bold;" target="_blank" title="Click to know more about GIVEN">GIVEN</a> hydrocarbon A is hex-3-ene.</body></html>


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