Exploring Substances: Acidic, Basic and Neutral Class 7 Science Notes
Introduction
In our daily life, we come across many substances like lemon juice, soap, water, and vinegar. These substances behave differently because of their chemical nature.
In this chapter, we will learn how substances are classified into acidic, basic, and neutral, and how we can identify them using indicators.
“Acidic basic neutral infographic class 7”
🧪 What are Acidic, Basic and Neutral Substances?
All substances can be classified into three types:
🔴 Acidic Substances
Definition:
Acids are substances that show acidic properties.
Characteristics:
Sour in taste
Turn blue litmus paper red
Examples:
Lemon juice, vinegar, tamarind water
🔵 Basic Substances
Definition:
Bases are substances that show basic properties.
Characteristics:
Bitter in taste
Slippery to touch
Turn red litmus paper blue
Examples:
Soap solution, baking soda, lime water
⚪ Neutral Substances
Definition:
Neutral substances are neither acidic nor basic.
Characteristics:
Do not change the colour of litmus paper
Examples:
Water, sugar solution, salt solution
