JEE CHEMISTRY MCQ: HYDROCARBONS

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The disappearance of the characteristic purple colour of

{KMnO}_4

in its reaction with an alkene is the test for unsaturation. It is known as

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Correct option: B

Baeyer test

Option B (Baeyer test) is correct because the disappearance of the purple color of KMnO4 in its reaction with an alkene is known as the Baeyer test, which is used to test for unsaturation.

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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

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