The most importasnt active step in the development of periodic table w

1.	The most importasnt active step in the development of periodic table was taken by [CPMT 1976]
A.	Mendeleef
B.	Dalton
C.	Avogadro
D.	Cavendish
Answer» B. Dalton

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The most importasnt active step in the development of periodic table was taken by [CPMT 1976]

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