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1 से 30 तक परमाणु क्रमांक याद करने की ट्रिक । परमाणु भार । Chemistry ke Basic Concept {Class - 1}
Hello dosto yadi aap logo 12th ki chemistry me acche number lane to hame follow Kro
basic chemistry ki sabhi class dekho
thank you
#science #chemistry #12chemistry #viral