Write the structural formula and determine the molecular formula for (i): 1-ethyl-3-methylcyclohexane and (ii): isobutylcyclopentane.

A 1° carbon is attached to one carbon, a 2° to two carbons, a 3° to three carbons, and a 4° to four carbons. Classify each of the carbons in 1-(tert-butyl)-3-ethylcyclopentane.

1,2-Diethylcyclobutane is more stable with a trans geometry while 1-3-diethylcyclobutane is more stable with a cis geometry. Figure out the reason behind this by drawing their structures.

Mark the hydrogen atoms as primary (1°), secondary (2°), or tertiary (3°) in the following structures.

a. Cyclobutane

b. 2,3-Dimethylbutane

Draw all the disubstituted cycloalkanes possible for the formula C₇H₁₄. Also, show the structures of cis and trans isomers where possible.

Write the name for the given cycloalkane as per the IUPAC nomenclature system.

Write the IUPAC names of the given cycloalkanes.