Problem- Given the compounds 1, 1-diethyl-4-methylcyclohexane, and 4-ethyl-1, 1-dimethylcyclohexane
only 4-ethyl-1,1-dimethylcyclohexane is chiral
both are chiral
only 1,1-diethyl-4-methylcyclohexane is chiral
neither is chiral
I need proficient help to solve the above problem