Discrete Practice Questions

Consult your online resources for Full-Length Exams and Passage-Based Questions (for certain
chapters).

1 . Within  one principal   energy  level,  which   subshell    has the least   energy?

(A)  s

(B)  p

(C)  d

(D)  f

2 . Which   of  the following   compounds   possesses   at  least   one σ   bond?

(A)  CH 4

(B)  C 2 H 2

(C)  C 2 H 4

(D)  All    of  the above   contain at  least   one σ   bond.

3 . A   carbon  atom    participates    in  one double  bond.   As  such,   this    carbon  contains    orbitals

with:

(A)  hybridization  between the s-orbital   and one p-orbital.

(B)  hybridization  between the s-orbital   and two p-orbitals.

(C)  hybridization  between the s-orbital   and three   p-orbitals.

(D)  unhybridized   s   character.

4 . The hybridizations  of  the carbon  and nitrogen    atoms   in  CN− are: