Which of the following Newman conformations is the most stable? Н.С. з. Н сн. Н3CCH, ре...

Question

Question

Answer 1

Answer #1

The methyl groups here repel each other and hence the closer they get to each other more they repel each other.

And hence they become more and more unstable

So the position where all the CH3 groups are away from each other the most is the most stable conformation.

But the staggered position (1 and 3 ) are more stable than eclipsed position (2 and 4)

And between 1 and 3

3 is more stable as CH3 group is away from each other

So the answer is

a. 3

I hope this helps. If you have any query or want more detailed explanation, feel free to ask in the comments section below.

Answer 2

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