O/N 2019/P11/Q8
Which row correctly identifies the different formulae of ethene and of its homologous series?
Answer: A
Explaination
Ethene is the first member of alkene series having “ene” as suffix. The general formula for whole alkene series is CnH2n. We will get the molecular formula for ethene by putting the value of number of carbons (eth=2C) in”n” place so it will be C2H4. The empirical formula will be the half of molecular formula i.e., C2H4/2
