JEE CHEMISTRY MCQ: HYDROCARBONS

1 Easy

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Understanding +4 | -1

Assertion (A):

{CH}_4

does not react with

{Cl}_2

in dark.
Reason (R): It involves free radical mechanism.

View answer and explanation

Correct option: A

Both (A) and (R) are correct but (R) is not
the correct explanation of (A)

Option B is correct because while the reaction of methane with chlorine does involve a free radical mechanism, the reaction *does* occur, but only in the presence of light (hv). Therefore, the assertion that it doesn't react in the dark is correct, but the reason is not the explanation.

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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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