Question

What is the effect of Nitric Acid on methyl orange ?

• A. It turns from orange to pink.
• B. It turns from pink to orange.
• C. It turns from orange to yellow.
• D. Does not change colour.

Answer 1

The correct option is A

It turns from orange to pink.

Methyl orange is a pH indicator frequently used in titrations because of its clear and distinct colour change. Because it changes colour at the pH of a midstrength acid, it is usually used in titrations for acids.

Nitric acid turns it from orange to pink.