JEE CHEMISTRY MCQ: HYDROCARBONS

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Acetylenic hydrogens are acidic because

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Correct option: A

Sigma electron density of

\mathrm{C}-\mathrm{H}

bond in acetylene is nearer to carbon, which has

50 \% s

-character

Option A is correct because the sigma electron density of the C-H bond in acetylene is closer to the carbon, which has 50% s-character, making the hydrogen relatively acidic.

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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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