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Q.

A metal,M forms chlorides in its +2 and +4 oxidation states, Which of the following statements about these chlorides is correct?

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a

 MCI2 is more easily hydrolysed than MCI4 

b

MCI2 is more soluble in anhydrous ethanol than MCI4 

c

MCI2 is more volatile than MCI4 

d

MCI2 is more ionic than MCI4 

answer is A.

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Detailed Solution

Metal atom in the lower oxidation state forms the ionic bond and in the higher oxidation state the covalent bond because higher oxidation state means small size and great polarizing power and hence greater the covalent character.  Hence MCI2 is more ionic than MCI4 

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