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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 ?
Write any two consequences of Lanthanoid Contraction.
Name the element of 3d series which exhibits the largest number of oxidation states. Give reason.
Give reasons for the following statements :
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