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Chemistry
Chemistry
Problem
Acid used for making permanent marking on the glass surface is: a.
HNO
3
\text{HNO}_3
HNO
3
b. HF c.
HIO
3
\text{HIO}_3
HIO
3
d.
H
2
SO
4
\text{H}_2\text{SO}_4
H
2
SO
4
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