1.

Which of the following react with dilute H_(2)SO_(4) to form H_(2).

Answer»

Al
Pb
Zn
Mg

Solution :`2Al+3H_(2)SO_(4) to Al_(2)(SO_(4))_(3)+3H_(2): Zn+H_(2)SO_(4) to ZnSO_(4) +H_(2), Mg+H_(2)SO_(4) to MgSO_(4)+H_(2)`


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