1.

A hydrocarbon, C_(4)H_(8), neither decolourised bromine in carbontetrachloride nor reacted with hydrogen bromide. When heated to 200^(@)C with hydrogen in presence of nickel catalyst, a new hydrocarbon, C_(4)H_(10) was formed. What was the orginal hydrocarbon?

Answer» <html><body><p></p>Solution :`C_(<a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a>)H_(8)` can have the following isomers: <br/> `underset("1-Butene")(CH_(3)CH_(2))CH=CH_(2)""underset("2-Butene")(CH_(3)CH=CHCH_(3))""{:(CH_(2)-CH_(2)),("||"),(CH_(2)-CH_(2)),("Cyclobutane"):}` <br/> 1-Butene and 2-butene are ruled out as these decolourise <a href="https://interviewquestions.tuteehub.com/tag/bromine-904632" style="font-weight:bold;" target="_blank" title="Click to know more about BROMINE">BROMINE</a> in carbontetrachloride and <a href="https://interviewquestions.tuteehub.com/tag/also-373387" style="font-weight:bold;" target="_blank" title="Click to know more about ALSO">ALSO</a> react with hydrogen bromide. <br/> The hydrocarbon is cyclobutane. Cyclo-butane on reduction with hydrogenin presece of <a href="https://interviewquestions.tuteehub.com/tag/nickel-1117895" style="font-weight:bold;" target="_blank" title="Click to know more about NICKEL">NICKEL</a> opens up the ring and forms n-butane. <br/> `underset(CH_(2))underset(|)CH_(2)-underset(CH_(2))underset(|)CH_(2)+H_(2)underset(<a href="https://interviewquestions.tuteehub.com/tag/200-288914" style="font-weight:bold;" target="_blank" title="Click to know more about 200">200</a>^(@)C)overset(Ni)toCH_(3)CH_(2)CH_(2)CH_(3)`</body></html>


Discussion

No Comment Found

Related InterviewSolutions