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Question
Chemical changes are mostly irreversible.
Chemical changes are mostly irreversible.
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Solution
The correct option is A True
A change in which new substance is formed, whose composition and properties are different from those of the original substance is known as a chemical change. The change is permanent and cannot be reversed. So, chemical changes are mostly irreversible and physical changes are reversible. Hence, the given statement is true.
True
A change in which new substance is formed, whose composition and properties are different from those of the original substance is known as a chemical change. The change is permanent and cannot be reversed. So, chemical changes are mostly irreversible and physical changes are reversible. Hence, the given statement is true.
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