आधुनिक आवर्त नियम के प्रवर – McqOptions

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1.	आधुनिक आवर्त नियम के प्रवर्तक है ?
A.	मोसले
B.	मेंडेलीफ
C.	एवोगाद्रो
D.	डाल्टन
Answer» B. मेंडेलीफ

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