From the knowledge of activity series, name a metal which shows the following properties
(i) It reacts readily with cold water
(ii) It displaces hydrogen from hot water
(iii) It displaces hydrogen from dilute HCI
(iv) It forms a base which is insoluble in water.
From the knowledge of activity series, name a metal which shows the following properties
(i) It reacts readily with cold water
(ii) It displaces hydrogen from hot water
(iii) It displaces hydrogen from dilute HCI
(iv) It forms a base which is insoluble in water.
(i) Na (sodium metal reacts readily with cold water according to reactivity series.)
When a metal reacts with water, it forms metal hydroxide. Hydrogen gas is also produced in this reaction. Following is the general equation for this reaction.
Metal + Water ⇨ Metal hydroxide + Hydrogen
Different metals react with water at different rates. Most of the metals do not react with water. However, alkali metals react vigorously with water.
(ii) Magnesium
Magnesium does not react with cold water. It reacts with hot water and forms magnesium hydroxide and hydrogen gas.
Aluminium does not react with cold or hot water. But when steam is passed over aluminium, aluminium oxide and hydrogen gas are produced.
(iii) Aluminium
When aluminium reacts with dilute hydrochloric acid, then aluminium chloride and hydrogen gas are formed.
(iv) Copper
Copper is a metal that forms a base that is insoluble in water.
(i) Na (sodium metal reacts readily with cold water according to reactivity series.)
When a metal reacts with water, it forms metal hydroxide. Hydrogen gas is also produced in this reaction. Following is the general equation for this reaction.
Metal + Water ⇨ Metal hydroxide + Hydrogen
Different metals react with water at different rates. Most of the metals do not react with water. However, alkali metals react vigorously with water.
(ii) Magnesium
Magnesium does not react with cold water. It reacts with hot water and forms magnesium hydroxide and hydrogen gas.
Aluminium does not react with cold or hot water. But when steam is passed over aluminium, aluminium oxide and hydrogen gas are produced.
(iii) Aluminium
When aluminium reacts with dilute hydrochloric acid, then aluminium chloride and hydrogen gas are formed.
(iv) Copper
Copper is a metal that forms a base that is insoluble in water.
