The Indian rubber tree belongs to which family?

When $Cruciferae$ plants are crushed,a pungent odor is produced due to the presence of:

The largest family of flowering plants is:

Monadelphous condition is found in .........

Phyllodes are common among which of the following plant families?

Statement $S$: In $Catharanthus$ $roseus$ (Periwinkle),the number of carpels is two.
Statement $R$: $Catharanthus$ $roseus$ is an example of a bicarpellary condition.