Which of the following is a class?

Which taxonomic term may be suggested for any rank in the classification?

The order generally ends with

Which of the following is a taxon?

If an organism belongs to different orders but the same phylum,it may also belong to the same ......... .

Which of the following $statement(s)$ is/are not correct?
$(i)$ Genus comprises a group of related species which has more characters in common in comparison to species of other genera.
$(ii)$ Three different genera such as $Solanum$,$Datura$ and $Petunia$ are placed in the family $Malvaceae$.
$(iii)$ In case of plants,classes with a few similar characters are assigned to a higher category called phylum.