Question

When you add water to sulfur dioxide and put a blue litmus paper in it, why does it
turn red?​

Answer 1

Answer:

when you add water auto sulfates dioxide and pat a blue paper in it turn red candle near the mouth of test tube counting of sulphuric acid of magnesium metal why does it explains why do the cloth salt of the solution of copper when in a vehicle and part of an iron nail in and children we soil not all of the water to collect in place around us for a long time to present the drip irrigation method is a born in an area with water

Answer 2

When a blue litmus turns red , it's a clear cut indication that the medium is acidic.

When conversion of Red litmus to Blue is indication of presence of a basic medium.

So , it's acidic nature of sulphur dioxide which turns Blue litmus red .