Question

que in the above photo​

Answer 1

Answer:

it is because aluminium is reactive only in its molten state. however in its solid state aluminium is an excellent conductor of heat.

it is because magnesium oxide is a basic substance and a base turns red litmus blue.

Explanation:

Answer 2

Answer:

9(a) I don't know... sorry for that

Explanation:

9(b) As magnesium oxide is a base..

when red litmus paper is touched with a aqueous solution of magnesium oxide it turns blue in colour...

hope it helps you...