JEE CHEMISTRY MCQ: HYDROCARBONS

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Analyzing +4 | -1

Assertion (A): Acidity of

\mathrm{C}-\mathrm{H}

bond decreases in the order

3{\text{CH}} \equiv {\text{CH}}\xrightarrow{{{\text{Red hot iron tube}}}}

Reason (R): Acidity of the

\mathrm{C}-\mathrm{H}

bond decreases as the electronegativity of the carbon to which it is attached decreases.

View answer and explanation

Correct option: A

Both A

\&

R are correct and R is correct explanation of A

Both A & R are correct and R is correct explanation of A because the acidity of C-H bond is directly related to the s-character of the carbon atom, which also affects its electronegativity.

More Questions from HYDROCARBONS

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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: