Question & Answer » Chemistry Questions » What Happens When (i) Magnesium is Burnt in the Air (ii) Quick Lime is Heated With Silica (iii) Chlorine Reacts with Slaked Lime (iv) Calcium Nitrate is Heated?

What Happens When (i) Magnesium is Burnt in the Air (ii) Quick Lime is Heated With Silica (iii) Chlorine Reacts with Slaked Lime (iv) Calcium Nitrate is Heated?

What happens when Mg burns in air, quicklime reacts with silica, chlorine with slaked lime, and calcium nitrate is heated? CBSE Chemistry.

Table of Content

(i) Magnesium Oxide is formed when magnesium ribbon burns and reacts with oxygen in the air. This reaction is known as the oxidation reaction of magnesium. The chemical equation is:

2Mg(s)+O₂(g)→2MgOs

(ii) Calcium silicate is formed when quick lime (CaO) is heated with silica.

CaO+SiO₂→CaSiO₃

(iii) When chlorine is run over slaked lime, Ca(OH)₂, it is quickly absorbed, resulting in bleaching powder or calcium oxychloride and water.

Ca(OH)₂+Cl2→CaOCl₂+H₂O

(iv) Quick lime (CaO) is formed when Calcium Nitrate is heated. Also NO₂, and O₂ are produced by heating calcium nitrate.

Ca(NO₃)₂CaO+NO₂+O₂