Question

Magnesium + oxygen  Magnesium oxide
Sulphur + oxygen  Sulphur dioxide
If you are given litmus paper to check the nature of the product
formed in the above two reactions, what will be the observation?

Answer 1

magnesium oxide will turn red litmus paper blue which indicates that it is basic in nature.

Whereas sulphur dioxide is acidic in nature as it turns blue litmus paper red.