Physical & Chemical Changes and Respiration in Organisms | Quiz | Class VII

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Acid Base and Salt | NCERT Solution | Class VII

Question: 1. State differences between acids and bases. Answer: Acid Base Sour in taste. Bitter in taste. Turns blue litmus…

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examples of physical changes | Class VII

Folding of a paper sheet: A paper can be folded or unfolded, and hence it is an example of physical…

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Important points of Physical and Chemical Changes | Class VI, VII and IX

1. A physical change is a temporary one which changes the physical appearance of a substance without changing its chemical…

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