MEDIUM
7th Punjab Board
IMPORTANT
Earn 100

Name the source from which litmus solution is obtained. What is the use of this solution?

Important Questions on Acids, Bases and Salts

MEDIUM
7th Punjab Board
IMPORTANT
Science>Chapter 5 - Acids, Bases and Salts>Exercises>Q 4
Is the distilled water acidic/basic/neutral? How would you verify it?
MEDIUM
7th Punjab Board
IMPORTANT
Science>Chapter 5 - Acids, Bases and Salts>Exercises>Q 5
Describe the process of neutralization with the help of an example.
EASY
7th Punjab Board
IMPORTANT
Science>Chapter 5 - Acids, Bases and Salts>Exercises>Q 6
Nitric acid turns red litmus blue.
EASY
7th Punjab Board
IMPORTANT
Science>Chapter 5 - Acids, Bases and Salts>Exercises>Q 6
Sodium hydroxide turns blue litmus red.
EASY
7th Punjab Board
IMPORTANT
Science>Chapter 5 - Acids, Bases and Salts>Exercises>Q 6
Sodium hydroxide and hydrochloric acid neutralize each other and form salt and water.
EASY
7th Punjab Board
IMPORTANT
Science>Chapter 5 - Acids, Bases and Salts>Exercises>Q 6
Indicator is a substance which shows different colors in acidic and basic solutions.
EASY
7th Punjab Board
IMPORTANT
Science>Chapter 5 - Acids, Bases and Salts>Exercises>Q 6
Tooth decay is caused by the presence of a base.
MEDIUM
7th Punjab Board
IMPORTANT
Science>Chapter 5 - Acids, Bases and Salts>Exercises>Q 7
Dorji has a few bottles of soft drink in his restaurant. But, unfortunately, these are not labelled. He has to serve the drinks on the demand of customers. One customer wants acidic drink, another wants basic and third one wants neutral drink. How will Dorji decide which drink is to be served to whom?