Basic laboratory techniques । class 11 chemistry practical
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3 سال پیش
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this video is full demonstration
this video is full demonstration of class 11 chemistry practical experiment No 1 how to cut a glass rod how to bend a glass rod, how to draw a jet from a glass rod, how to make hole in a cork
3 سال پیش
در تاریخ 1400/06/17 منتشر شده
است.
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