Identify the metals from below which justify the following questions. Copper, Silver, Gold, Platinum, Magnesium .
(a) Which metal will react with dil. `H_(2)SO`, and gives pop sound give reaction.
(b) Identify metals which will not react with dilute acids.

Explanation

(a) Magnesium .
`underset("Magnesium")(Mg) + underset("Dilute sulphur acid")(H_(2)SO_(4)) to underset("Magnesium sulphate")(MgSO_(4)) + underset("Hydrogen gas")(H_(2) uarr)`
(b) Metals such as copper, silver, gold and platinum do not react with dilute acids.