MEDIUM
7th CBSE
IMPORTANT
Earn 100

How do these things taste? Complete the following table. 

Substances Taste(Bitter/Sour/Sweet/Salty/other)
1. Curd  
2. Lemon juice  
3. Cake  
4. Bitter gourd  
5. Amla (Indian gooseberry)  
6. Neem leaves  
7. Omelette  
8. Vinegar  

Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Acids, Bases and Salts>Find Out

Find out the names of the strongest and the weakest acids found naturally. Also, find out the names of the strongest and the weakest bases. 

EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Acids, Bases and Salts>PRACTICE TIME>Q 1
The acids that occur naturally in plants and animals are called organic acids. 
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Acids, Bases and Salts>PRACTICE TIME>Q 2
Bases increase OH- ions in a solution. 
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Acids, Bases and Salts>PRACTICE TIME>Q 3
The weak bases are mild as compared to the strong bases. 
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Acids, Bases and Salts>PRACTICE TIME>Q 4
Sodium hydroxide is an example of a strong base.
EASY
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Acids, Bases and Salts>PRACTICE TIME>Q 5
Magnesium hydroxide is an example of a weak base. 
MEDIUM
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Acids, Bases and Salts>Think and Discuss
Why do we use universal indicators in the laboratory and not the naturally prepared indicators? 
MEDIUM
7th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Acids, Bases and Salts>PRACTICE TIME>Q 2

How can turmeric be used as an indicator?