" The law of triads is applicable to a group of "

The law of triad is applicable to a group of

The law of triad is applicable to :

The law of triad is applicable to :

The law of triad is applicable to :

The law of triad is applicable to a group of a) Cl, Br, I b)C,N,O c) Na,K,Rb d) H,O,N

The law of triads is not applicable with

The law of triad is applicable to : Chlorine, bromine and iodine Hydrogen, oxygen and nitrogen Sodium, neon and calcium All of the above