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State Four Differences Between Physical and Chemical Changes. - Chemistry

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Question

State four differences between physical and chemical changes.

Distinguish Between

Solution

Physical change Chemical change
  1. No new substances with new properties are formed.
  2. It can be reversed by simple physical methods.
  3. It is temporary change.
  4. Energy is neither needed nor produced.
  1. New substances with new properties are formed.
  2. Change cannot be reversed by simple physical methods.
  3. It is permanent change.
  4. Energy is either needed or evolved.
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Classification of Change: Physical Changes
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Q 7
Chapter 2: Physical and Chemical Changes - Exercise

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Selina Concise Chemistry [English] Class 7 ICSE
Chapter 2 Physical and Chemical Changes
Exercise | Q 7

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