JEE Main 2019ChemistryGeneral Organic ChemistryMediumMCQ

JEE Main 2019General Organic Chemistry Question with Solution

JEE Main 2019 (12 Apr Shift 2)

Question

In the following skew conformation of ethane, H'-C-C-H dihedral angle is:

Choose an option

Show full solutionCorrect option: C
Correct answer
C149o

Step-by-step explanation

The structure given in question is in staggered form. Hence, the two planes are 120° apart.
Given difference in angle of H-C-H bond is 29.
 The dihedral angle will be 120°+29°=149°

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the General Organic Chemistry chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2019, covering the General Organic Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.