Question

(a) In a tabular form write the colours of the following indicators in presence of acid and bases :
Litmus solution, phenophthalein solution, methyl orange solution.
(b) ClAssify the following given solutions A and B in acidic and basic, giving reason.

CBSE Class X Science SA 2 (3 Marks)

Answer 1

Indicators            
Pheriophthalein                    
Methyl orange            

Acid
Colorless
Orange

Base
Pink
yellow

b) Solution A — Basic solution Solution B —Acidic solution Because n-1 1 is greater than 1.0 x 1tr7 m                            

 

Answer 2

Answer: Solution A = Basic Solution

Solution B = Acidic solution

Explanation:In an PH scale we know 0-7 consider as increase of acid and 7-14 consider as increase of base so , from this we can conclude the answer .

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