Question 1
Combustion of 493 mg of a hydrocarbon gave 1549 mg CO
2 and 633.9 mg H
2O. What is the molecular formula if the molecular weight is subsequently found to be 42?
◦ CO
2 ◦ CH
2 ◦ C
6H
12 ◦ C
2H
2O
◦ C
3H
6 Question 2
Compound
A easily reacts with water to give compound
B. Compound
B can be oxidized to produce compound
C. Both
B and
C can be further oxidized to produce
D. To which classes of organic compounds
A,
B,
C and
D most likely belong to, respectively?
◦
A is an alkane,
B is an alcohol,
C is an aldehyde and
D is a carboxylic acid
◦
A is an alkene,
B is an ether,
C is an aldehyde and
D is a carboxylic acid
◦
A is an alkene,
B is an alcohol,
C is a ketone and
D is a carboxylic acid
◦
A is an alkene,
B is an alcohol,
C is an aldehyde and
D is an ester
◦
A is an alkene,
B is an alcohol,
C is an aldehyde and
D is a carboxylic acid