CHE 240 Exam 3 | Questions and Answers | 2025 Update | 100% Correct.

New York NY Borough of Manhattan Community College

Department of Science CHE 240 Exam 3 Spring 2025
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Name K E \ Instructor: Dr. B. Dewprashad

1. Draw the following structures: (12 points)
(a) p-aminophenol
(b) 1,2-chlorobenzoic acid
(c) m-nitrobenzaldehyde
OR /CQ B
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(o)



2.(a) Classify each the following two compounds as either as aromatic, antiaromatic, or
nonaromatic. (b) Which of the following will be most basic?© Explain the reason for your
choice. (5 points)



L)NN [=
NN ‘

I\ B C As sardleC
lose 4 osic Mo Bosic
< o\Y Mo
Lo PO° \owe X0
:‘\A\)\:\M IYN i gt
! \\\, 4
(}-\IUV"‘L‘CLUX O UM (et

, 3. Classify the following compounds as either as aromatic, antiaromatic, or nonaromatic.
Explain the reason for your choice in each case (18 points)
AN “Mewc K\K\\ W OWQA&
®
- | .r;m\ QG <
ys-ré“ [ R
(;mzo \
\;ngw UQ (,\Lb) (_LD(‘,l | 1 C



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N ofF vl

@ I
X c G O
‘QW\e Daawt ¢ LA
[}
dee ‘c.e (@
e
iy e
4. Arrange the following compounds in order of decreasing reactivity towards
electrophilic aromatic substitution (1 being the most reactive and 5 the least), Explain
the reasons for your choice: (6 points)



G: No/
eO 0O

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