A) + 3
B) + 2
C) - 2
D) + 1
Correct Answer: A
Solution :
In \[\text{N}{{\text{a}}_{\text{3}}}\text{Al}{{\text{F}}_{\text{6}}}\] \[(+1\times 3)+x+(-1\times 6)=0\] \[3+x-6=0\] \[x=+3\] \[\therefore \] Oxidation number of Al is \[+3.\]You need to login to perform this action.
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