EASY
7th CBSE
IMPORTANT
Earn 100

Sodium hydroxide is found in lemon 

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Important Questions on Acids, Bases and Salts

EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q III
Lactic acid is found in curd.
HARD
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q IV

Match acids in column A with their sources in column B.

1. Column A Column B
2. Hydrochloric acid  (a) citrus fruits 
3. Oxalic acid  (b) curd and sour milk 
4. Tartaric acid  (c) grapes, raw mango 
5. Lactic acid  (d) spinach 
6. Ascorbic acid  (e) In the stomach as gastric juice 

 

MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q V
Name the acid present in citrus fruits. [Tartaric acid/ Citric acid/ Malic acid]
EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q V
Which is the most commonly used indicator?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q V
From which organisms litmus is extracted?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q V
Write the name of a synthetic or chemical indicator. (Litmus/ Methyl orange)
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q V
Name the base that is used as an antacid. 
HARD
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q VI
Name any two mineral acids and two organic acids