1.

Find total number of species in which Zn metal is soluble under oridnary condition (R.T.). `H_(2)O,"dil".H_(2)SO_(4),"conc". H_(2)SO_(4),"dil".HNO_(3),"conc".HNO_(3),"dil". HCl,NaOH(aq),AgNO_(3)(aq.),CuSO_(4)(aq.)`

Answer» Correct Answer - 8
`Zn+"dil".H_(2)SO_(4)rarrZnSO_(4)(aq)+H_(2)uarr`
`Zn+"conc".H_(2)SO_(4)rarrZnSO_(4)(aq)+SO_(2)uarr`
`Zn+"dil". HNO_(3)rarrZn(NO_(3))_(2)(aq)+N_(2)Ouarr`
`Zn+"conc."HNO_(3)rarrZn(NO_(3))_(2)(aq)+NO_(2)uarr`
`Zn+"dil". HClrarrZnCl_(2)(aq)+H_(2)rarr`
`Zn+NaOHrarrNa_(2)Zn(OH)_(4)(aq)+H_(2)uarr`
`Zn+AgNO_(3)rarrZn(NO_(3))_(2)+Agdarr`
`Zn+CuSO_(4)rarrZnSO_(4)+Cudarr`


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