Q9. Assertion: Chemical reaction changes the physical and chemical state of a substance
Reason: When electric current is passed through water (liquid), it decomposes to produce
hydrogen and oxygen gases.
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Answered by
39
Answer:
a) assertion and reason are true and r is the correct explanation of assertion
Answered by
4
In a chemical reaction, chemical state of substance changes but physical state of substance may be changed or not. So, Assertion is not true.
When an electric current passes through water molecule, it decomposes into hydrogen and oxygen. So, reason is true.
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