JEE CHEMISTRY MCQ: HYDROCARBONS

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Application +4 | -1

In a nitration experiment,

10.0 \mathrm{~g}

of benzene gave

13.2 \mathrm{~g}

of nitrobenzene. The percentage yield for nitration of benzene is:

View answer and explanation

Correct option: A

83.7 \%

Option A (

83.7 \%

) is correct because it is the percentage yield calculated from the actual yield of nitrobenzene compared to the theoretical yield based on the amount of benzene used.

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\mathrm{Ca}{\mathrm{C}_2} + {\mathrm{H}_2}\mathrm{O} \to X\xrightarrow{{{\mathrm{O}_3}/\frac{{{\mathrm{H}_2}\mathrm{O}}}{{\mathrm{O}{\mathrm{H}^ + }}}}}\mathrm{HCOOH} + \mathrm{HCOOH},X\;\mathrm{is}

In benzene, there is a delocalisation of π-electrons. Hence, each π-electron is attached by….carbon nuclei. Which statement is false? Assertion (A) In comparison to ethyl chloride, it is not easy to carry outnucleophilic substitution on vinyl chloride.

Reason (R) Vinyl group is an electron donating. If 2-oxopropanal and methanal are obtained by the reductive ozonolysis of compound (A), then the number of

\sigma

-bonds presents in Fischer-Tropsch process is used in the manufacture of: