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Q.

Given below are two statements:

S-I: The variable oxidation states of transition elements arises out of incomplete filling of d-orbitals in such way that their oxidation states differ from each other by unity 

S-II: In group 6,  MoVI  and WVI are found to be more stable than Cr (VI). 

In the light of the above statements, choose  the  most appropriate answer from the options given below:

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a

Both Statement-I and Statement-II are true

b

Statement-I is false but Statement -II is true

c

Statement I is true but Statement- II is false

d

Both Statement-I and Statement -II are false

answer is A.

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Detailed Solution

S-I. The variable oxidation states of transition elements arises out of incomplete filling of d-orbitals in such way that their oxidation states differ from each other by unity 
S-II: In group 6,  MoVI and WVI  are found to be more stable than Cr (VI). 

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