Question:

Given below are two statements.
Statement I: The compound
The compound
(A) is optically active.
Statement II:
mirror image of above compound
is a mirror image of the above compound A.
In the light of the above statement, choose the most appropriate answer from the options given below.

Updated On: Dec 29, 2025
  • Both Statement I and Statement II are correct.
  • Both Statement I and Statement II are incorrect.
  • Statement I is correct but Statement II is incorrect.
  • Statement I is incorrect but Statement II is correct.
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is C

Solution and Explanation

The given question involves the concepts of optical activity and chirality in organic chemistry. 

  1. Statement I Analysis:
    • The compound shown (Compound A) is a type of organic molecule with a chiral center. A chiral center is typically a carbon atom bonded to four different groups.
    • Optical activity arises from such chiral centers because they allow the molecule to rotate plane-polarized light. If a compound can do this, it is considered optically active.
    • In the structure of the compound, the presence of stereochemistry (the depiction of the spatial arrangement with bonds shown as wedges and dashes) indicates chirality, making the compound optically active.
  2. Statement II Analysis:
    • The second structure is provided as a potential mirror image of Compound A.
    • A true mirror image of a chiral compound would be its enantiomer, which would also be chiral but with an opposite configuration (i.e., if the original compound is R, the mirror image should be S, and vice versa).
    • By visual inspection, the given mirror image does not change the configuration correctly, or if it does not maintain the enantiomeric nature, it fails to be a true mirror image.

Based on the analyses, the correct option is: Statement I is correct but Statement II is incorrect.

Was this answer helpful?
2
2

Concepts Used:

Chemical Bonding and Molecular Structure

Such a group of atoms is called a molecule. Obviously, there must be some force that holds these constituent atoms together in the molecules. The attractive force which holds various constituents (atoms, ions, etc.) together in different chemical species is called a chemical bond.

Types of Chemical Bonds:

There are 4 types of chemical bonds which are formed by atoms or molecules to yield compounds. 

  • Ionic Bonds - Ionic bonding is a type of chemical bonding which involves a transfer of electrons from one atom or molecule to another.
  • Covalent Bonds - Compounds that contain carbon commonly exhibit this type of chemical bonding. 
  • Hydrogen Bonds -  It is a type of polar covalent bonding between oxygen and hydrogen wherein the hydrogen develops a partial positive charge
  • Polar Bonds - In Polar Covalent chemical bonding, electrons are shared unequally since the more electronegative atom pulls the electron pair closer to itself and away from the less electronegative atom.

Factors Affecting Bond Enthalpy in Chemical Bonding:

  • Size of the Atom
  • Multiplicity of Bonds
  • Number of Lone Pair of Electrons Present
  • Bond Angle