Question

The organic compound which undergoes substitution reaction is:

• A. ${\mathrm{C}}_2{\mathrm{H}}_2$
• B. ${\mathrm{C}}_2{\mathrm{H}}_4$
• C. ${\mathrm{C}}_{10}{\mathrm{H}}_{18}$
• D. ${\mathrm{C}}_2{\mathrm{H}}_6$

Answer 1

The correct option is D

${\mathrm{C}}_2{\mathrm{H}}_6$

Explanation for the correct option:

Alkanes undergo the substitution reaction easily because there is only a single bond present in alkanes.

(D) Ethane (${\mathrm{C}}_2{\mathrm{H}}_6$): Ethane is an alkane so, it will undergo a substitution reaction.

Explanation for the incorrect options:

Alkenes and alkynes do not undergo a substitution reaction due to the presence of the double or triple bond between the Carbon ($\mathrm{C}$) atoms.

(A) Ethyne (${\mathrm{C}}_2{\mathrm{H}}_2$): Ethyne is an alkyne so, it will undergo a Addition reaction due to the presence of the unsaturation.

(B) Ethene (${\mathrm{C}}_2{\mathrm{H}}_4$): Ethene is an alkene so, it will undergo Addition reaction due to the presence of the unsaturation.

(C) Decyne (${\mathrm{C}}_{10}{\mathrm{H}}_{18}$): Decyne is an alkyne so, it will undergo Addition reaction due to the presence of the unsaturation.

Therefore, the correct option is (D).