MCAT Organic Chemistry Review 2018-2019

(A)  Two    s-orbitals

(B)  Two    p-orbitals

(C)  One    s-  and one p-orbital

(D)  Two    sp^2 -hybridized    orbitals

9 . How many    σ   bonds   and π   bonds   are present in  the following   compound?

(A)  Six    σ   bonds   and one π   bond

(B)  Six    σ   bonds   and two π   bonds

(C)  Five   σ   bonds   and one π   bond

(D)  Five   σ   bonds   and two π   bonds

10 .    The four    C–H bonds   of  CH 4    point   toward  the vertices    of  a   tetrahedron.    This    indicates   that

the hybridization   of  the carbon  atom    in  methane is:

(A)  sp.

(B)  sp^2.

(C)  sp^3.

(D)  sp^3 d.

11 .    Why is  a   single  bond    stronger    than    a   π   bond?

I. π bonds have greater orbital overlap.
II. s-orbitals have more overlap than p-orbitals.
III. sp^3 hybridization is always unstable.