EASY
7th CBSE
IMPORTANT
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Which acid is injected when an ant or a bee bites a person?

Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.2>Q II
Why should factory wastes be treated before discharging into water bodies?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.2>Q II
Why is calamine solution applied to the skin when an ant bites?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.2>Q III
A farmer was unhappy because of his low crop yield. He discussed the problem with an agricultural scientist and realised that the soil of his field was either too acidic or too basic. What remedy would you suggest the farmer neutralise the soil?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.2>Q III
You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature (acidic / basic / neutral) of each solution.
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.2>Q III
While playing in a park, a child was stung by a wasp. Some elders suggested applying a paste of baking soda and then lemon juice as a remedy. Which do you think is an appropriate remedy and why?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.2>Q III
Paheli is suffering from indigestion due to acidity. Is it advisable to give her orange juice in this situation and why?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.2>Q III
How does soil become too acidic in nature?
MEDIUM
7th CBSE
IMPORTANT
Exam Guru Science>Chapter 5 - Acids, Bases and Salts>Exercise 5.2>Q III

What should be added to the soil when it is too acidic.