EASY
10th CBSE
IMPORTANT
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Neutral substances have a pH of .

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Important Questions on Acids, Bases And Salts

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Very Short Answer Type Questions>Q 18
The more acidic a solution, the _____ (higher/ lower) the pH.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Very Short Answer Type Questions>Q 18
The more alkaline a solution, the _____ the pH. (higher/lower)
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 19
Fresh milk has a pH of 6. When it changes into curd (yoghurt), will its pH value increase or decrease? Why?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 20

What is a universal indicator? For what purpose is it used?

MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 20
How does a universal indicator work?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 20
Water is a neutral substance. What colour will you get when you add a few drops of universal indicator to a test-tube containing water?
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 21
Which chemical is injected into the skin of a person:

(a) During an ant's sting?
(b) During the nettle leaf hair sting?
How can the effect of these stings be neutralised?

HARD
10th CBSE
IMPORTANT
Science for Tenth Class Part - 2 Chemistry>Chapter 2 - Acids, Bases And Salts>Short Answer Type Questions>Q 22
Explain the pH change as the cause of tooth decay. How can tooth decay caused by pH change be prevented?