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Chemiluminescence

https://chem.libretexts.org/Ancillary_Materials/Demos_Techniques_and_Experiments/Lecture_Demonstrations/Additional_Demos/Chemiluminescence--Luminol  

Analytical balance

https://chem.libretexts.org/Ancillary_Materials/Demos_Techniques_and_Experiments/General_Lab_Techniques/Proper_Use_of_Balances  

PG pathshala Chemistry

  https://epgp.inflibnet.ac.in/Home/ViewSubject?catid=13G8VouhmrFfuhs6rkiyTA==

#Question no.12 Answer

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#Today's question: Question no.13

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#Question no.11 Answer

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