| 1. |
What is indicator ? please tell |
|
Answer» ANSWER: INDICATORS =========== An indicator is a SUBSTANCE that changes its colour in acidic and basic medium.An indicator shows one colour in acidic medium and different colour in basic medium so that they are called indicators. eg:-Litmus , turmeric _______________________________ There are 3 types of indicators》》 ● Natural lndicators ________________ lndicators derived from natural SOURCES are called natural indicators. eg:- Litmus , red cabbage , turmeric , china rose petals etc.. ● SYNTHETIC indicators _________________ lndicators prepared in laboratary are callwd synthetic indicators. eg:- Phenophtaline , methyl orange etc.. ● Olfactory indicators _________________ lndicators which give different odours in acidic and basic medium. eg:-Onion , vanila essence etc... HOPE IT DOES AID YOU!! ====================================== and PLZ mark me at brainlist .
|
|