Question

Name the important compound formed when magnesium ribbon is burnt in the air. If you add water to the mixture of the compound formed, what will be the precipitate formed and the nature of the solution obtained?

Answer 1

Answer:

Explanation:

Magnesium ribbon burns in oxygen(O  

2

​  

) to form magnesium oxide(MgO).  

2Mg+O  

2

​  

→2MgO

Therefore, X is MgO.

When MgO is dissolved in water following reaction takes place:

MgO+H  

2

​  

O→Mg(OH)  

2

​  

.

Answer 2

Answer:

when magnesium ribbon is burnt in air MgO [magnesium Oxide} is formed

Explanation:

chemical equation

Mg2 + O2 - MgO

If we add water to the mixture;

MgO + H2O - Mg(OH)2 + H2

nature of the precipitate i.e. Mg(OH)2 is basic