Question

What is an acylium ion?

• A. A carbon with a double bond to an oxygen and a single bond to a halogen
• B. Carbocation formed from acyl chloride
• C. A carbon-oxygen double bond
• D. An aluminum chloride acid

Answer 1

The correct option is B Carbocation formed from acyl chloride

A carbon with a positive charge, resonant stabilized by a double bond to oxygen.
$\text{acylium ion}$