Assertion: A chemical reaction obeys law of constant proportion.
Reason: A chemical reaction must be equal mathematically as well as chemically.
1. Both A and R are true and r is the correct explanation of the assertion.
2. Both A and R are true, but R is not the correct explanation of the assertion.
3. A is true but R is false.
4. A is false but R is true.
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Answer:
1 . both A and R are are true and r is the correct explanation of assertion
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