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Today we are covering the chapter Acids, Bases and Salts of NCERT Class 7 Science. Here's a brief overview of the key concepts covered in this chapter:
Acids and bases are two types of chemical substances that have specific properties.
Acids are sour in taste, turn blue litmus paper red, and react with metals to release hydrogen gas.
Bases are bitter in taste, turn red litmus paper blue, and feel slippery to the touch.
The pH scale is used to measure the acidity or basicity of a substance, ranging from 0 to 14. A pH of 7 is neutral, pH less than 7 is acidic, and pH greater than 7 is basic.
Indicators are substances used to identify the presence of an acid or a base in a given substance.
Happy learning!
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