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Classification of Substance (in Hindi)
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Sanjay kumar is teaching live on Unacademy Plus

Sanjay kumar
Hii this is Sanjay Kumar I have been teaching Chemistry for 4 yrs Follow me on youtube @jamchem Qualified jam and many entrance

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(2)
U
Unacademy user
sir thanks and very helpful video
DA
sir aapke videos boht ache h kya aap thermodynamics for iit jam pe video banaoge
Thanks a lot sir for such efforts. Your course are very much useful for IIT JAM exam. I am very much benefited by your course.