Which of the following produce Oxonium salt with mineral acid?(A) Diethyl ether(B) Ethene(C) Ethanoic acid(D) None of the above

The production of an oxonium salt with a mineral acid involves the donation of a proton (H⁺) from the acid to a molecule, resulting in the formation of the oxonium ion (H₃O⁺) and the corresponding conjugate base.

Out of the options provided:

(A) Diethyl ether (C₄H₁₀O) is not capable of forming an oxonium salt with a mineral acid because it lacks an acidic hydrogen atom to donate to the acid.

(B) Ethene (C₂H₄) is an alkene and does not contain any hydrogen atoms bonded to electronegative atoms (such as oxygen or nitrogen) capable of being protonated by a mineral acid.

(C) Ethanoic acid (CH₃COOH) contains an acidic hydrogen atom (the hydrogen attached to the carboxylic acid group), which can be protonated by a mineral acid to form the oxonium salt.

Therefore, the correct answer is:

(C) Ethanoic acid