Question

Which one of the following oxides gives pink colour with phenolphthalein indicator in aqueous solution
A) N2O B) NO C) BaO D) CO2

Answer 1

Answer:

BaO gives pink color with phenolphthalein indicator in an aqueous solution i.e.option(C).

Explanation:

• The basic compounds give pink color with phenolphthalein indicator in an aqueous solution.

Let's take a look at each choice individually now.

(A)N₂O-Known as nitrous oxide. This compound is neutral in nature.

(B)NO-Known as nitric oxide. This compound is neutral in nature.

(C)BaO-known as barium oxide. This compound is basic in nature.

(D)CO₂-known as carbon dioxide. This compound is acidic in nature.

Hence, the correct answer among the options is (C)BaO.

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