Hydride gap' is referred to which region of the periodic table?
Group 7,8 and 9
The explanation for the correct option:-
Option (C): Groups 7,8 and 9
The explanation for the incorrect option:-
Option (A): Group 3,4,and 5
Option (B): Group 5,6 and 7
Option (D): Groups 3,5 and 7
Therefore, the Hydride gap' is referred to as option (C): Group 7, 8 and 9 regions of the periodic table.