EASY
10th CBSE
IMPORTANT
Earn 100

Name an indicator which is pink in alkaline solution but turns colourless in acidic solution.(Phenolphthalein/Methyl orange)

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Important Questions on Acids, Bases and Salts

EASY
10th CBSE
IMPORTANT
Name the acid-base indicator extracted from lichens. (Vanilla / Litmus)
EASY
10th CBSE
IMPORTANT
Complete the following table:
Indicators Neutral colour Acidic medium Basic solution
Methyl orange      
Phenolphthalein      
litmus      
MEDIUM
10th CBSE
IMPORTANT
What are synthetic indicators? How will you test the given samples for acid or base with the help of this indicator?
EASY
10th CBSE
IMPORTANT
What is meant by olfactory indicators? Give any two examples.
MEDIUM
10th CBSE
IMPORTANT
A solution was added to vanilla extract, then the characteristic smell of vanilla was not detected. State whether the given solution is acid or a base.
EASY
10th CBSE
IMPORTANT
Why is the taste of lemon sour?
MEDIUM
10th CBSE
IMPORTANT
On what basis will you classify acids?
EASY
10th CBSE
IMPORTANT
Difference between organic and mineral acids.