1.

Which of the following stateement are correct ?

Answer»

Ammonium salts on reaction with strong alkalies PRODUCE a non-inflamble gas
FAC-`[Co(NO_3)_3(dien)]` is non-chiral
Solid potassium dichromate and concentrated `H_2SO_4`liberates chlorine gas with solid sodium chloride
The increasing order of paramagnetic properties amongst`VCl_3, VOSO_4 , Na_3VO_4, [V(H_2O)_6]SO_4. H_2O` is `Na_3VO_4 lt VOSO_4 lt VCl_3 lt [V(H_2O)_6] SO_4. H_2O`

Solution :(A)`NH_4^(+)+OH^(-)toNH_3uarr+H_3O`
(B) The statement is correct ,non-chiral because there is mirror plane through the metal bisecting the dilen LIGAND.
(C )`4Cl^(-)(s)+Cr_(2)O_(7)^(2-)(s)+6H^(+)("conc.")to2CrO_2Cl_2uarr` (deep red) +`3H_2O(l)`
(D)`VCl_3 , ._23V^(3+), [Ar]^(18)3d^(2)`=2 unpaired electrons
`VO^(2+) , V^(4+) , [Ar]^(18)3d^(2)`=1 unpaired electron
`[VO_4]^(3-) , V^(3+), [Ar]^(18)3d^(0)`=no unpaired electron
`[V(H_2O)_6]^(2+), V^(2+), [Ar]^(18)3d^3`=3 unpaired electrons


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