1.

HCOONa overset(350^(@))underset(Delta) to Gas(X) + Residue (Y)overset(CoCl_(3)) to "Complex" (Z) Complex (Z) is:

Answer»

an outer ORBITAL complex
optically active
oxidised when exposed to air
paramagnetic

Solution :`HCOONaunderset(Delta)overset(350^(@)C)rarrH_(2)(X)+NaC_(2)O_(4)(Y)overset(CoCl_(3))rarrNa_(3)[Co(C_(2)O_(4)](Z)`
(i) `"GAS" (X) to H_(2)`
-It is diamagnetic
-B.O.=1
-It acts as `pi`-acid (into `sigma_(1s)^(**))`
(ii) `Na_(3)[Co(C_(2)O_(4)]`
`[M(AA)_(3)]`

Optically active


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