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  • Give reasons : (i)  shows the highest oxidation state of +7 with oxygen but with fluorine it shows the highest oxidation state of +4. (ii) <img al

Give reasons :

(i) Mn shows the highest oxidation state of +7 with oxygen but with fluorine it shows the highest oxidation state of +4.

(ii) Zn is soft whereas Cr is hard.

(iii) Eu^{2+} is a good reducing agent.

 

 

 

 
 
 
 
 

Answers (1)

(i) Mn shows the highest oxidation state of +7 with oxygen, but with fluorine it shows the highest oxidation state of +4, because of the ability of oxygen to form multiple bonds with transition metals (a\pi -\rho \pi ) but fluorine cannot do so.

(ii) Zn is soft but Cr is hard due to presence of strong metallic bonds in Cr and due to presence of 5 unpaired electrons in d-orbital, whereas Zn have weak metallic bonds in their lattices due to absence of unpaired d electrons.

(iii) Eu^{2+} is a good reducing agent because it has tendency to get oxidised to +3 state,and reach the most stable oxidation state.

Posted by

Sumit Saini

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