Question

A substance that changes color in response to a chemical change is called as indicator . and Name of the indicator used when sodium hydroxide is titrated against sulphuric acid is phenolpthalein .
For true add 0 and for false add 1.

Answer 1

A substance that changes color in response to a chemical change.The neutralization point can be determined by the use of indicator. The indicator used when sodium hydroxide is titrated against sulphuric acid is phenolphthalein. Phenolphthalein adopts four different states in aqueous solution responsible for colour change during change in pH from 8.2 to 13.