Quiz 1
Introduction to organic chemistry
1. The isomers must have
a. The same structure formula
c. The same molar mass
time:
b. The same molecular formula
d. b and c
2. 0.1 g of organic compound produce 0.22 g of CO2 on burning, so the
percentage of carbon in the compound equals
a. 60
b. 30
c. 20
d. 40
3. On heating ammonium chloride with silver cyanate solution, ……….is formed
a. Urea
b. Silver chloride ppt.
c. a and c
d. Alcohol
4. Which of the following if heterocyclic compound?
H2N
OH
NH
NH
a
b
a. a only
c
b. a and c
c. b and d
d
d.
a, b,c and d
5. Which of the following are isomers?
CH3
H2N
OH
NH
NH
a
b
a. a and b
c
b. a and c
d
c. b and d
d. no correct answer
6. The urea is considering as isomer of
O
O
HO
NH
H2N
a
H
NH2
H2N
NH2
b
OH
HO
H2N
N
H2N
c
H
d
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