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12 grade chemistry others

The melting point of 2-nitrophenol is lower than that of 4-nitrophenol and this is because of:

  • A. intramolecular hydrogen bonding in 2-nitrophenol
  • B. intramolecular hydrogen bonding in 4-nitrophenol
  • C. intermolecular hydrogen bonding in 2-nitrophenol
  • D. hydrogen bonding has no relation to the melting point

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1 Year agoGrade
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1 Answer

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Askiitians Tutor Team

ApprovedApproved Tutor Answer1 Year ago

The melting point difference between 2-nitrophenol and 4-nitrophenol can be attributed to the presence of intramolecular hydrogen bonding in 2-nitrophenol. This bonding occurs within the same molecule, which stabilizes its structure and lowers its melting point compared to 4-nitrophenol, where such bonding is not as significant.

Key Points to Remember

  • Intramolecular hydrogen bonding: This occurs when a hydrogen bond forms between atoms within the same molecule, affecting its stability.
  • Melting point: The temperature at which a solid becomes a liquid; influenced by molecular interactions.
  • 2-nitrophenol vs. 4-nitrophenol: The position of the nitro group affects the type of hydrogen bonding that can occur.

Therefore, the correct answer is A. intramolecular hydrogen bonding in 2-nitrophenol.


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is Pradeep Chemistry+Ncert sufficient for all of the theory of Jee Mains Chemistry?


Hi, I’m a self-study JEE 2027 aspirant with a large 11th backlog. Since I don’t think 6–8 hour one-shots are sufficient to cover the full theory + breadth of problem types of a JEE chapter, I’ve shifted from lecture-based preparation to book-based self-study.


I have a problem with using NCERT as my primary chemistry source. In my experience, it is concise and information-heavy, but often lacks detailed explanations, systematic organisation of concepts, and categorisation of problem types. This seems especially problematic for Physical and Organic Chemistry, where I feel that simply reading NCERT may not give enough depth or problem-solving preparation.


So I’m considering this approach:


Pradeep Chemistry → complete the chapter thoroughly from Pradeep → then read NCERT for that chapter → solve JEE Main PYQs/problems.


My main question is:


Is Pradeep + NCERT sufficient as the complete theory source for JEE Main-level Chemistry?


In other words, after thoroughly completing a chapter from Pradeep and then NCERT, can I consider the theory part of that chapter complete for JEE Main, with only PYQs/problem practice remaining?


I’m asking specifically about JEE Main level, not Advanced.


Also, if Pradeep is not sufficient, what specific gap does it leave, and what would you recommend as a better book-based alternative for self-study?

Grade 1212 grade chemistry others

Last Activity: 11 Days ago