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 $



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