Question

2. Carbon dioxide converts blue litmus into red, thus it is an :-
(a) Acidic oxide
(b) Alkaline/basic oxide
(c) neutral oxide
(d) none of these.​

Answer 1

Answer:

However, a solution of carbon dioxide will turn blue litmus paper red, which implies that a carbon dioxide solution is acidic. You can get the same result by exposing carbon dioxide to moist litmus paper--the gas will react with the moisture to produce an acidic solution, thus turning blue litmus paper red.

Answer 2

Answer:

You can get the same result by exposing carbon dioxide to moist litmus paper--the gas will react with the moisture to produce an acidic solution, thus turning blue litmus paper red. you get an acidic solution because some of the dissolved carbon dioxide will react with water to form carbonic acid, H2CO3 , a weak acid.