Synthetic Indicators | MCQs and Experiments

The substances whose odour changes in acidic or basic media are called ______. Options are (a) Natural indicators (b) Synthetic indicators (c) Acid-base indicators (d) Olfactory indicators.

Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions , respectively are

Name one natural indicator and one synthetic indicator.

What is an acid -base indicator ? Give two examples of synthetic acid -base indicators .

(i) In an experiment, appearance of concentric rings on watch glass against light indicates the presence of ________ (ii) In an experiment, production of boiled off air indicates presence of__________

Which of these is an example of synthetic indicators?