11 6. Which ONE of these would have the lowest boiling point? a) (CHi)N b) CH CH

Question

11 6. Which ONE of these would have the lowest boiling point? a) (CHi)N b) CH CH NHCH primary amine has how many peaks in the region of 3200-3400 cm" in the IR? a) zerob) one c) two d) three 8. Draw the enol form of acetophenone. 9. A lo compound has the formula CHO, with all the following characteristics: a) It has a band at 1700 cm in the IR. What does this tell you? b) It gives a negative 2,4-DNP test. What does this tell you? c) Its' H NMR consists of: 70-7.5 (5 H, multiplet) 2.2 (3H,singlet) What is the structure of this compound? 10. Show the steps necessary to carry out this transformation CHy CH TO NO2

Explanation / Answer

6)

a do not have any hydrogen attached to N

b has 1 hydrogen attached to N

c has 2 hydrogen attached to N

So,

c can form maximum number of hydrogen bonding

a can’t form hydrogen bonding

So, boiling point will be highest for c and lowest for a

Answer: a

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