The total number of benzene derivatives corresponding to the molecular formula `C_6H_3Cl` is

The total number of benzene derivatives having the molecular formula C_7H_7Br is

The total number of benzene derivatives with the molecular formula C_6H_3Cl_3 is:

Write the metamers corresponding to the molecular formula C_4H_10O

The total number benzene derivatives with molecular formula C_(6)H_(3)CI_(3) is :

The number of isomeric amines corresponding to molecular formula C_(3)H_(9)N , which liberate N_(2) gas on treatment with nitrous acid is

The total number of constitutional isomers having the molecular formula C_3H_8O is

Give the structures of the hydrocarbons corresponding to the molecular formula C_(8)H_(12)