1. in a cyclic hydrocarbon with only carbon-carbon single bonds and n number of carbon atoms, how many hydrogen atoms are there in terms of n?
2 – n
2n
2 + n
2n

3. which of the following molecules does not display resonance?
benzene
phenylethane
m-xylene
cyclohexane

1. In a cyclic hydrocarbon with only carbon-carbon single bonds and n number of carbon atoms, how many hydrogen atoms are there in terms of n?A cyclic hydrocarbon containing only carbon-carbon single bonds is called a cycloalkane it has a general formula of CnH2n. Therefore, the correct answer among the choices is the last option.

3. Which of the following molecules does NOT display resonance? 

The answer would be cyclohexane.

Anions are negative charged ions