1.

Molecuels ions and their magnetic properties are given below {:("Molecular/ion","Magnetic property"),(C_(6)H_(6),"Antiferromagnetic"),(CrO_(2),"Ferrimagnetic"),(MnO,"Ferromagnetic"),(Fe_(3)O_(4),"Paramagnetic"),(Fe^(3+),"Diamagnetic"):} The correctly matched pairs in the above is

Answer»

i-5,ii-3iii-2,iv-1,v-4
`i-3,ii-5,iii-1,iv-4,v-2`
i-5,ii-3,iii-1,iv-2,v-4
i-5,ii-3,iii-1,iv-4,v-2

Solution :`C_(6)H_(6)` is diamagnetic (i-5)
`CrO_(2)` is FERROMAGNETIC (ii-3)
`MnO` is antiferromagnetic (iii-1)
`Fr_(3)O_(4)` is FERRIMAGNETIC (iv-2)
`FE^(3+)` is PARAMAGNETIC with 5 unpaired electrons (v-4).


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