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CBSE › Class 7 › Science › Exploring Substances: Acidic Basic and Neutral (Class 7 NCERT New)
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1. When an indicator (litmus paper ) is dipped in these liquids , there will be a change from ____

2. If you put too much lemon in your glass and it is too sour , how will you control the taste ?

3. The type of acid in these products is _____

4. Acid rain is a phenomenon and it is caused by ____.

5. Which statement is incorrect with water?

6. Stomach produces acidity to ______ digestion of food.

7. All solutions that fall between 0 and 6.9 are

8. Which is most acidic?

9. This image represents

10. What is the range of pH values in a basic solution?

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