Assertion (A): Ortho nitrophenol is more volatile than para nitrophenol. 
Reason (R): In ortho-nitrophenol, intramolecular as well as intermolecular hydrogen bonding is present, while in para-nitrophenol only intermolecular hydrogen bonding is present. 
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  van der Waal Force & Hydrogen Bonding |
Level 3: 35%-60%
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