Question

1 Marks
7. An indicator is a chemical compound that changes color and structure when exposed to certain
conditions and is therefore useful for chemical tests,which includes litmus paper. What type of
compound is indicated here by the litmus test?
Acid
Reducing agent
Salt
Base​

Answer 1

acid and base

in acid blue litmus paper change into red

in base red litmus paper change into blue

in acid Salt in blue litmus paper change into red

in base salt red litmus paper change into the Blue

in neutral salt no change mean same colour