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Reported Question / Answer
Q.) The formula of hydrogen carbonate is
1)
H
-3
CO
2)
HCO
3-
3)
none
4)
HC
-3
O
5)
NULL
Answer :
2
Thank you for reporting wrong Question / Answer / Options
We look forward to your suggestions and feedback.
Message / Correct Answer / Suggestion
Human Verification : Answer 2 + 3 = ?
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