When human prevent waste or loss it is known as
1 answer:
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Explanation:
Reagents: Water , 1.0 M HCl, Conc.
Metal-1 = Magnesium
Metal-2 = Sodium
Metal-3 = Silver
a) Out of these three metals sodium is a soft metal which can be easily cut with help of knife.Sodium metal reacts violently with water to form hydrogen gas and sodium hydroxide.
b) Out of magnesium and silver, magnesium metal reacts readily with HClto form magnesium chloride and hydrogen gas. Where as silver being noble metal doesn't get attacked by the HCl.
c) Silver is a noble metal. And noble metals only react with concentrated that is nitric acid.
d) When few drops of HCl were added to the solution of silver and. This will leads to the formation of nascent chloride which reacts with silver metal present in the solution to give silver chloride.