1. The number of different constitutional isomers that can be drawn for C2H4Br2 is equal to
2. The order of boiling points of the simple alkanes CH4, C2H6, and C3H8 is
a. CH4 < C2H6< C3H8
b. CH4 > C2H6> C3H8
c. C2H6 < CH4 < C3H8
d. CH4 < C2H6 > C3H8
3.Which of the following statements about pi molecular orbitals is/are correct?
a. pi molecular orbitals are cylindrically symmetric
b. most of the electron density in a pi molecular orbital is centered above and below the internuclear axis
c. when two atoms are connected by a double bond, both of these bonds are pi bonds
d. all of the above are correct
1. The answer is b. TWO. We can draw 2 isomers:
Br2CHCH3 or BrCH2CH2Br
2. The ...
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