Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Haloalkanes and Haloarenes

Question:

What are the number of chiral centers in the given Alkyl halide

Options:

1

2

0

3

Correct Answer:

0

Explanation:

The correct answer is Option (3) → 0

To identify a chiral centre, a carbon must be attached to four different groups.

  • The given molecule is a substituted cyclobutane ring.

  • Check each carbon:

1. Carbon with Cl: Attached to:

    • Cl

    • Ring carbon (left)

    • Ring carbon (down)

    • These two ring paths are identical (symmetry present)
       Not chiral

    • 2. Other ring carbons: Each is attached to:

      • CH₃

      • Ring carbons

  • Due to symmetry of the ring, identical groups appear
     Not chiral

  • Even if substituents look different, symmetry in cyclic structures makes paths identical, removing chirality.

  • No carbon has four different groups
     No chiral centre present

Hence, the correct answer is 0