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12 grade chemistry others

The greater stability of trans-but-2-ene over cis-but-2-ene can be explained on the basis of hyperconjugation effect.

  • A. True
  • B. False

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1 Year agoGrade
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ApprovedApproved Tutor Answer1 Year ago

The statement is True. The greater stability of trans-but-2-ene compared to cis-but-2-ene can indeed be attributed to the hyperconjugation effect.

Understanding Hyperconjugation

Hyperconjugation involves the interaction between the electrons in a sigma bond (like C-H or C-C) and the empty p-orbitals of adjacent carbon atoms. This interaction helps to stabilize the molecule.

Why Trans-but-2-ene is More Stable

  • Less Steric Hindrance: In trans-but-2-ene, the larger groups are positioned opposite each other, reducing repulsion.
  • Increased Hyperconjugation: The arrangement allows for more effective overlap between the sigma bonds and the p-orbitals, enhancing stability.

In contrast, cis-but-2-ene has the larger groups closer together, leading to increased steric strain and less hyperconjugation, making it less stable.


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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
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