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Account for the following :
Which ion amongst the following is colourless and why ? Ti4+, Cr3+, V3+ (Atomic number of Ti = 22, Cr = 24, V = 23)
Why is Mn2+ much more resistant than Fe2+ towards oxidation ?
Highest oxidation state of a metal is shown in its oxide or fluoride only. Justify the statement.
Write any two consequences of Lanthanoid Contraction.
Name the element of 3d series which exhibits the largest number of oxidation states. Give reason.
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