तत्वों के वर्गीकरण से सम्ब – McqOptions

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1.	तत्वों के वर्गीकरण से सम्बन्धित अष्टक नियम का प्रतिपादन किसने किया -
A.	डूमा ने
B.	डोबरेनर ने
C.	न्यूलैंडस ने
D.	मेंडेलीफ ने
Answer» D. मेंडेलीफ ने

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