Question

which of the above substances changed blue litmus to red​

Answer 1

Answer:

I don't know but please mark me as the brainliest pleeeeeeeeaaaaaaaasssssssseeeeeeew

Answer 2

Answer:

Lemon juice is citric acid, so it turns blue litmus paper red.

Carbonate soft drink contains carbon dioxide dissolved in water. Carbon dioxide forms carbonic acid with water which turns blue litmus paper red.

Curd contains lactic acid and hence turns blue litmus paper to red