JEE Main 202622 JanuaryMorning Shift
- Exam
- JEE Main
- Year
- 2026
- Date
- 22 January
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- Alcohols Phenols and Ethers
JEE Main 2026 · 22 January · Morning Shift · Chemistry · Alcohols Phenols and Ethers
Given below are two statements: Statement I : Phenol on treatment...
Given below are two statements:
Statement I: Phenol on treatment with /aq. KOH under refluxing condition, followed by acidification produces -hydroxy benzaldehyde as the major product and -hydroxy benzaldehyde as the minor product.
Statement II: The mixture of -hydroxybenzaldehyde and hydroxybenzaldehyde can be easily separated through steam distillation.
In the light of the above statements, choose the correct answer from the options given below
Statement I: Phenol on treatment with /aq. KOH under refluxing condition, followed by acidification produces -hydroxy benzaldehyde as the major product and -hydroxy benzaldehyde as the minor product.
Statement II: The mixture of -hydroxybenzaldehyde and hydroxybenzaldehyde can be easily separated through steam distillation.
In the light of the above statements, choose the correct answer from the options given below
Options
- AStatement I is true but Statement II is false
- BStatement I is false but Statement II is true
- CBoth Statement I and Statement II are true
- DBoth Statement I and Statement II are false
Correct answer
B. Statement I is false but Statement II is true
Step-by-step solution
Statement I: The reaction of phenol with and aqueous is the Reimer-Tiemann reaction. In this reaction, the major product is -hydroxybenzaldehyde (salicylaldehyde) due to the formation of a stable six-membered chelate ring via intramolecular hydrogen bonding. -hydroxybenzaldehyde is formed as the minor product. Thus, Statement I is false.
Statement II: -hydroxybenzaldehyde (salicylaldehyde) has intramolecular hydrogen bonding, making it more volatile (steam volatile). -hydroxybenzaldehyde has intermolecular hydrogen bonding, which leads to association between molecules and a higher boiling point, making it non-steam volatile. Therefore, the mixture can be easily separated by steam distillation. Thus, Statement II is true.
Conclusion: Statement I is false but Statement II is true.
Statement II: -hydroxybenzaldehyde (salicylaldehyde) has intramolecular hydrogen bonding, making it more volatile (steam volatile). -hydroxybenzaldehyde has intermolecular hydrogen bonding, which leads to association between molecules and a higher boiling point, making it non-steam volatile. Therefore, the mixture can be easily separated by steam distillation. Thus, Statement II is true.
Conclusion: Statement I is false but Statement II is true.