322476 Number of isomers possible (including stereoisomers) with molecular formula ${\mathrm{C}}_3{\mathrm{H}}_5{\mathrm{Cl}}_3$ is

322475 Number of secondary haloalkanes possible (including steroisomers) with molecular formula ${\mathrm{C}}_5{\mathrm{H}}_{11}\mathrm{Cl}$ is

322476 Number of isomers possible (including stereoisomers) with molecular formula ${\mathrm{C}}_3{\mathrm{H}}_5{\mathrm{Cl}}_3$ is