1) How many types of indicators are there ? a) Three b) Two 2) When turmeric mixed with basic solution it turns into. a)  Red colour b) Green colour  3) China rose indicator when reacts with base it turns into. a) Pink colour b) Green colour 4) Red litmus paper turns blue if the substance is basic. a) True b) False 5) There are two types of litmus paper . a) True b) False

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