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ScienceClass 7CBSE
Q

Fill in the blanks in the following sentences (a) Lemon juice and vinegar taste ___________ because they contain ___________. (b) Turmeric and litmus are _________ acid-base indicators. (c) Phenolphthalein gives _________ colour with lime water. (d) When an acidic solution is mixed with a basic solution, they _________ each other forming _________ and water.

A

Soln:

(a) Lemon juice and vinegar taste sour because they contain acids.

(b) Turmeric and litmus are natural acid-base indicators.

(c) Phenolphthalein gives pink colour with lime water.

(d) When an acidic solution is mixed with a basic solution, they neutralize each other forming salt

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