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In the dichromate dianion:
The catalytic activity of transition elements and their compounds is ascribed to:
The basic character of the transition metal monoxides follows the order (Atomic no Ti
= 22, V = 23,
Cr = 24, Fe = 26):
CrO3 dissolves in aqueou s NaOH to give :
Addition of high proportions of manganese makes steel useful in making rails of rail roads, because manganese
The anodic mud obtained during electro refining of Cu contains
Zn
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