The ash which is collected after burning of magnesium ribbon when dissolved in water turns red litmus blue phenolphtalein pink.also write the balanced equation.
 

Asked by arajeevshashank | 12th Nov, 2017, 08:22: PM

Expert Answer:

The burning of magnesium turns it into magnesium oxide MgO (ash) due to reaction with oxygen in air
Dissolving MgO in water produces magnesium hydroxide 
 
MgO +H2O =Mg(OH)2
 
Mg(OH)2 magnesium hydroxide is basic in nature i.e it is base which turns red litmus blue and blue phenolphthalein pink

Answered by Gajendra | 6th Dec, 2017, 04:08: PM