physical and chemical reaction ll all compititions exam ll

[@Gurjar-boy901]

Gjb sir ji ❤❤

[@rajeshbaghel3504]

Okk

[@ashokbaghel359]

Class kitne din bad aati hai

[@AmanKushwah-jz2kt]

चौक का टूटना रासायनिक परिवर्तन है

[@ramstudyofscience2377]

भौतिक परिवर्तन है