Reason (R) : In eclipsed conformation, the distance between the two methyl group is minimum and so there is maximum repulsion between them and it is the least stable conformer.
A. Both (A. and (R) are correct and (R) is the correct explanation of (A).
B. Both (A)and (R) are correct hut (R) is not the correct explanation of (A).
C. (A) is correct but (R) is wrong.
D. (A) is wrong but (R) is correct.
Answer:A
Reason (R) : In eclipsed conformation, the distance between the two methyl group is minimum and so there is maximum repulsion between them and it is the least stable conformer.
A. Both (A. and (R) are correct and (R) is the correct explanation of (A). B. Both (A)and (R) are correct hut (R) is not the correct explanation of (A). C. (A) is correct but (R) is wrong. D. (A) is wrong but (R) is correct.