Uses of acids — task. Science State Board, Class 9.

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Choose the correct answer based on the uses of the given acids:

1. Two \(H^+\) ions per molecule

\(HCl\)
\(H_2CO_3\)
\(HNO_2\)
\(HNO_3\)

2. Fertilizers

\(HCl\)
\(H_2SO_4\)
\(HNO_3\)
\(HNO_2\)

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