1.

CrO_4^(2-)+H^(+)to[X]+H_2O Give the answer of the following questions for the reaction product [X] (P)In how many M-O bonds, the bond length are equal ? (Q)What is the oxidation state of the central metal ion ? (R)What is the magnetic moment of the central metal ion ? (S)How many peroxide linkages are there in the product formed by the reaction of [X] with H_2O_2 in acidic medium ?

Answer»


Solution :`2overset(-8)(Cr)O_4^(2-)+2H^(+)toCr_2O_7^(2-)+H_2O`
(P)
Six Cr-O bonds are EQUAL in LENGTHS because of resonance.
(Q)`Cr_2O_7^(2-)`
`2x+7(-2)= -2` or x=6
(R)ELECTRONIC configuration of `overset(+6)(Cr)` is `[Ar]^(18)3d^(0)4s^(0)`.No unpaired electron so magnetic moment is ZERO (0).
(S)`Cr_2O_7^(2-)+2H^(+)+4H_2O_3to2CrO(O_2)_2+5H_2O`


Discussion

No Comment Found