Answer
a) $CH$
b) $CO_{2}$
c) $CH_{2}O$
d) $BH_{3}$
Work Step by Step
The empirical formula of a compound represents the simplest whole number ratio of the atoms present in that compound.
For Example, in the case of $C_{6}H_{12}O_{6}$, the empirical formula would be $CH_{2}O$, because the simplest whole number ratio of 6:12:6 is 1:2:1.
