Question

Among the following elements, what is the total number of elements having the lowest oxidation state of zero?
`Ta
b. `Te`
c. `Tc`
d. `Ti`
e. `TI`

Answer 1

Correct Answer - D
The maximum oxidation state is the group number. The maximum oxidation state of metals is zero, for non-metal it is equal to the group number minus `8`. The maximum and the minimum oxidation states are
a. `+5`, b. `+6, -2` , c. `+7 , 0` , d. `+4,0` , e. `+3, 0`