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InterviewSolution
| 1. |
What is indicator and there type |
| Answer» Indicator is a substance which gives one colour in acidic medium and another colour in basic medium.For example,red litmus solution changes into blue in acid medium and blue litmus solution changes into redin basic medium.The type of indicator are:-(1)Natural indicator,e.g.,Limtus.(2) Synthetic indicator(3) Olfactory indicator,e.g.,onion,vanilla essence. | |