Question

An oxide solution of which of the following elements will turn blue litmus red.
Sodium Oxide, Magnesium Oxide, Calcium Oxide, Sulphur Dioxide

Answer 1

Answer:

SO WE KNOW OXIDE OF ANY METAL GIVES US A BASIC SUBSTANCE

Explanation:

ACID TURNS BLUE LITMUS RED

sodium oxide is an OXIDE OF SODIUM = base

HENCE IT WILL TURN RED LITMUS BLUE as its a base

MG OXIDE is also a base its used to make MILK OF MAGNESIA WHICH TREATS MORE ACID IN STOMACH (ACIDITY)

CALCIUM OXIDE = base

it helps in neutralization when the soil becomes ACIDIC

SULPHUR DIOXIDE  Is a GAS which when released into water GIVES US SULPHUROUS ACID and its AN ACID