You have to first go through the paragraph carefully and then select the answer of the related questions from the option given:Transition elements show varibale oxidation state. This is because their valence electrons are found in two different orbitals i.e. ns and (n-1)d. Up to +2 oxidation state ns electrons are involved but in higher oxidation states electrons of (n-1)d subshell are involved.The most common oxidation state shown by first row transition elements is(A) +2(B) +3(C) +4(D) all of these

You have to first go through the paragraph carefully and then select t

1.	You have to first go through the paragraph carefully and then select the answer of the related questions from the option given:Transition elements show varibale oxidation state. This is because their valence electrons are found in two different orbitals i.e. ns and (n-1)d. Up to +2 oxidation state ns electrons are involved but in higher oxidation states electrons of (n-1)d subshell are involved.The most common oxidation state shown by first row transition elements is(A) +2(B) +3(C) +4(D) all of these
Answer» Answer (B) +3

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