State change को physical change क्यों कहा जाता है?
Why is state change called a physical change?
Explanation opens after your attempt
A. chemical identity generally same रहती हैChemical identity generally remains same
Concept
In state change only physical form changes. Chemical composition of substance can remain same.
Why this answer is correct
The correct answer is A. chemical identity generally same रहती है / Chemical identity generally remains same. In state change only physical form changes. Chemical composition of substance can remain same.
Exam Tip
State change में only physical form बदलता है। Substance की chemical composition same रह सकती है।
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