JEE Main 202624 JanuaryMorning Shift
- Exam
- JEE Main
- Year
- 2026
- Date
- 24 January
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- Haloalkanes and Haloarenes
JEE Main 2026 · 24 January · Morning Shift · Chemistry · Haloalkanes and Haloarenes
Given below are two statements: Statement I : ' C-Cl^ bond is...
Given below are two statements:
Statement I: ' bond is stronger in than
Statement II: The given optically active molecule,
on hydrolysis gives a solution that can rotate the plane polarized light.
In the light of the above statements, choose the correct answer from the options given below
Statement I: ' bond is stronger in than
Statement II: The given optically active molecule,
on hydrolysis gives a solution that can rotate the plane polarized light.
In the light of the above statements, choose the correct answer from the options given below
Options
- AStatement I is false but Statement II is true
- BBoth Statement I and Statement II are true
- CBoth Statement I and Statement II are false
- DStatement I is true but Statement II is false
Correct answer
D. Statement I is true but Statement II is false
Step-by-step solution
Statement I: In vinyl chloride (CH₂=CH-Cl), the C-Cl bond involves an sp² hybridized carbon, while in ethyl chloride (CH₃-CH₂-Cl), it involves an sp³ carbon. The sp² carbon has greater s-character, forming a shorter and stronger C-Cl bond. Additionally, resonance stabilization from the Cl atom's p-orbital overlapping with the π system further strengthens the vinyl C-Cl bond. Statement I is TRUE.
Statement II: The optically active molecule shown has a stereogenic center bearing Me, Ph, Et, and Cl groups. Upon hydrolysis via nucleophilic substitution (typically SN1 for tertiary or secondary centers), the C-Cl bond breaks to form an alcohol. SN1 mechanism generates a carbocation intermediate, allowing nucleophilic attack from both faces, producing a racemic mixture of the alcohol product. A racemic solution cannot rotate polarized light as the d- and l-enantiomers cancel each other's rotations. Statement II is FALSE.
Statement II: The optically active molecule shown has a stereogenic center bearing Me, Ph, Et, and Cl groups. Upon hydrolysis via nucleophilic substitution (typically SN1 for tertiary or secondary centers), the C-Cl bond breaks to form an alcohol. SN1 mechanism generates a carbocation intermediate, allowing nucleophilic attack from both faces, producing a racemic mixture of the alcohol product. A racemic solution cannot rotate polarized light as the d- and l-enantiomers cancel each other's rotations. Statement II is FALSE.