The correct statement regarding the comparison
of staggered and eclipsed conformation of ethane,
is :-
(1) The staggered conformation of ethane is less
stable than eclipsed conformation, because
staggered conformation has torsional strain
(2) The eclipsed conformation of ethane is more
stable than staggered conformation, because
eclipsed conformation has no torsional strain
(3) The eclipsed conformation of ethane is more
stable than staggered conformation even
through the eclipsed conformation has torsional
strain
(4) The staggered conformation of ethane is more
stable than eclipsed conformation, because
staggered conformation has no torsional strain.