A) \[HN{{O}_{3}}\]
B) \[HCl\]
C) \[{{H}_{2}}S{{O}_{4}}\]
D) \[HN{{O}_{2}}\]
Correct Answer: C
Solution :
\[{{H}_{2}}S{{O}_{4}}\] is act as a pickling agent. Pickling is an industrial process for removing layers of basic oxides from metals like \[Fe\] and \[Cu\] before electroplating, enamelling, galvanising and soldering.You need to login to perform this action.
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