Question

a metal x is stored under kerosene when a small piece of it is Left Open in a it catches fire when the product formed is dissolved in water it turns red litmus to Blue name the metalX write the chemical equation for the reaction when it is exposed in air and when the product is dissolved in water explain the formation of MgCl2 with the help of electron dot structure

Answer 1

a. The metal is Sodium. Sodium is the most reactive metal and just room temperature is enough for it to react with oxygen and form Sodium Dioxide.

b. 4Na2 + O2  2Na2 O

(When it is exposed in air)

2NA + 2H2 O2NAOH + H2 (When it dissolved in water)

c. Na++ e-Na 2Cl-+ 2e-Cl2.