Question

the following change is observed on dipping a litmus paper in aqueous solution of MgO.
a.red litmus turns blue,therefore MgO is alkaline.
b. blue litmus turns red,therefore MgO is acidic.
c.no c olour change in litmus paper,therefore MgO is neutral.
d.litmus paper is decolourised,therefore MgO acts as as bleaching agent.

Answer 1

option a
metal oxides are basic oxides and turns red litmus paper to blue