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Chemistry d and f block elements all imp question

Sandhya Rani behera 18th Feb, 2022

Answer (1)

Prachi Panda 18th Feb, 2022

Hello,

Important questions from d and f block elements are-

What is meant by ‘lanthanoid contraction’?
Why do transition elements show variable oxidation states?
Write the formula of an oxo-anion of Manganese (Mn) in which it shows the oxidation state equal to its group number.
What happens when (NH4)2Cr2O7 is heated?
Write the formula of an oxo-anion of Chromium (Cr) in which it shows the oxidation state equal to its group number.

Hope this helps!!

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