chemistry class 9 chapter 1 in urdu medium | benefit | Drawback| waqar ul hasan Academy | urdu

chemistry class 9 chapter 1 in urdu medium | benefit | Drawback| waqar ul hasan Academy | urdu

#9thchemistry #9thclasschemistry In this lecture we discuss definition of chemistry, benefits, and drawback of the chemistry. Please subscribe my channel and click on bell icon.

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