A molecular compound with a molar mass of about 28.05 g/mol contains ∼ 85.56% carbon and ∼ 14.4% hydrogen, by mass. How many double bonds, single bonds, and lone electron pairs are in the molecule?
(a) 1 double bond, 2 single bonds, 2 lone pairs.
(b) 1 double bond, 4 single bonds, 0 lone pairs.
(c) 0 double bonds, 1 single bond, 1 lone pair.
(d) 0 double bonds, 1 single bond, 2 lone pairs.
(e) 1 double bond, 2 single bonds, 0 lone pairs
Answer: 1 double bond, 4 single bonds, 0 lone pairs.