Chemistry
State the colour change in a universal indicator e.g. pH paper on
(i) slightly acidic soil
(ii) slightly alkaline soil
(iii) dairy milk
(iv) human blood tested for medical diagnosis.
Acids Bases Salts
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Answer
(i) The pH paper changes to yellow colour on a slightly acidic soil.
(ii) The pH paper changes to blue colour on a slightly alkaline soil.
(iii) The pH paper changes to green colour in a dairy milk.
(iv) The pH paper changes to green colour in human blood tested for medical diagnosis.
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