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JEE CHEMISTRY MCQ: HYDROCARBONS

1 Medium

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Analyzing +4 | -1

Compound 'X' on treatment with

\mathrm{O}_3

followed by

\mathrm{Zn} / \mathrm{H}_2 \mathrm{O}

gives methanal and cyclohexyl methanal. The compound 'X' is:

View answer and explanation

Correct option: D

3-cyclohexyl-1-propene

Option D (3-cyclohexyl-1-propene) is correct because its ozonolysis followed by reductive workup yields methanal and cyclohexyl methanal.

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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: