MEDIUM
7th CBSE
IMPORTANT
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Nitric acid is used in explosives. 

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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
Sodium nitroxide is also known as caustic soda.
EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q III
Orange juice is sour in taste due to presence of citric acid. 
EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 8 - Acids, Bases and Salts>EXERCISES>Q III
Sodium hydroxide is found in lemon 
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?