Question

on heating magnesium ribbon the presence of air, the colour and physical state of the substance produced is ?

(a) black,solid
(b) white, liquid
(c)white ,solid
(d) black ,gas

Answer 1

on heating mg ribbon we get white and soild substance

Answer 2

Hello there
When magnesium burns, it is actually reacting with oxygen in the air and not with fire. Fire is what we call the heat and light produced when things burn. Magnesiumreacts with oxygen to make a compound called magnesium oxide. The bright light results because this reaction produces a lot of heat.

Mgo colour is white
and it's in powder form....you can say it's solid

Thanks