1.

A metal M and its compounds can gives the following observable changes in a consequence of reaction

Answer»

Mg
Pb
Zn
Sn

Solution :`UNDERSET((M))"Zn"OVERSET(dil.HNO_(3))rarr underset(underset("solution")"Colouless")(Zn(ZO_3)_2)overset(NAOH)underset(aq.)rarr underset("White ppt.")(Zn(OH)_2)`
`overset("Excess")underset(NaOH)rarr underset("soluble")(Na_(2)[Zn(OH)_(4) overset(H_2S)rarrunderset("White ppt.")(ZNS)]`


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