Question

Arrange the following in the increasing order of stability:

• A. $D<B<C<A$
• B. $D<C<B<A$
• C. $A<C<B<D$
• D. $D<B=C<A$

Answer 1

The correct option is A $D<B<C<A$

Increasing order of stability is:

$D<B<C<A$

More substituted alkenes are more stable than less substituted alkenes.

In A,B,C,D , A alkene is more substituted so most stable, D alkene is less substituted so least stable.