Chemistry
Grade-10
Easy
Question
Which is most acidic?
- Battery Acid
- Lemon Juice
- Black Coffee
- Milk
Hint:
Battery acid is the most acidic among them as it has the lowest pH among them.
The correct answer is: Battery Acid
- The acids have a pH of less than 7.
- Water has a pH of 7.0, while battery acid has a pH of 1.0.
- The pH of lemon juice is 2.0. Lemon juice, black coffee, and milk all have pH values of 6.8, 5.0, and 2.2, respectively.
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Which of the following has the highest value of pH?
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Substance that has pH greater than 7.
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Substance that has pH less than 7.
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The pH scale is a range from:
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An indicator paper is prepared by dipping paper strips in solution (P). When this strip of indicator is added to the solution (Q), which contains less H+ ions than the OH- ions, the color of the paper strip turns pink. Identify the solution (P).
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| (a) Litmus |
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A substance (X) is added to the lime solution and then mixed with red cabbage solution. The resultant solution turns out violet in color. What will be the nature of substance (X)?
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Identify the solution present in test tubes A, B and C, respectively?
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Identify the solution present in test tubes A, B and C, respectively?
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Which of the pigment found in the red cabbage changes color when acid or base is added to it?
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The indicators which remain yellow when added to the base and become red in color when added to acid is:
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The indicator which is prepared from man-made substances in the lab are called:
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