Question

oxidation of Ni in [Ni(Cl)6]​

Answer 1

oxidation no of Ni is

x+(-6)=0

x=6

but I think question should be Ni(Cl)4

because for Ni +4exist

Answer 2

Answer:

(b) [Ni(NO₂ )₆ ]⁴⁻ < [Ni(H₂O)₆]²⁺

< [Ni(NH₃ )₆ ]²⁺