The molar mass of a compound X is 56. its empirical formula is CH2. X is
-
A.
butene. -
B.
butyne. -
C.
ethene. -
D.
propene. -
E.
propyne
Correct Answer: Option A
Explanation
((CH_{2})x = 56)
((12 + 2)x = 56)
(14x = 56)
(x = frac{56}{14})
(x = 4)
Hence, the empirical formula is ((CH_{2}) times 4)
= (C_{4}H_{8})