Answer
It has four different attached substituents - Bromine, Chlorine, Iodine and Hydrogen.
Work Step by Step
Chirality of a molecule is only achieved when it is bonded to four different groups or atoms.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.