1.60 g of a metal was dissolved in `HNO_3` to prepare its nitrate. The nitrate salt on strong heating gave 2g oxide. The equivalent mass of metal is:

1.60g of a metal was dissolved in HNO_(3) to prepare its nitrate.The nitrate on strong heating gives 2g oxide.The equivalent weight of metal is 4 x,then x is

1.60 g of a metal were dissolved in HNO_3 to prepare its nitrate. The nitrate was strongly heated when 2.0 g of the metal oxide was obtained. Calculate the equivalent weight of the metal.

0.5g of a metal on oxidation gave 0.79g of its oxide. The equivalent mass of the metal is

4 g of copper was dissolved in concentrated nitric acid. The copper nitrate on strong heating gave 5 g of its oxide. The equivalent weight of copper is