P-Block Elements Ques 402
Question: Oxidation number of As in $ H_2AsO_4^{-} $ is
[CPMT 2001]
Options:
A) 6
B) 7
C) 5
D) 9
Show Answer
Answer:
Correct Answer: C
Solution:
Oxidation number of $ As $ in $ H_2AsO_4^{-} $ $ 2+x-8=-1 $ $ x-6=-1 $ $ x=5 $