1.

Which of the following order (s) is/are correct ?

Answer»

`H_(3) PO_(4) gt H_3PO_(3) gt H_3 PO_(2)` (reducing character)
`N_(2) O lt NO lt N_(2)O_(3) lt N_(2)O_(5)` (oxidation STATE on nitrogen)
`NH_(3) gt PH_(3) gt AsH_(3) gt SbH_(3)` (basicity)
`SbH_(3) gt NH_(3) gt AsH_(3) gt PH_(3)` (reducing character)

Solution :a) Reducing character : `H_3PO_(4) gt H_2PO_3 gt H_(3)PO_2`
B)`overset(+1)(N_2O)lt overset(+2)(NO)ltoverset(+3)(N_2O_3)lt overset(+5)(N_2O_5)-` oxidation state on nitrogen
c) `NH_3 gt PH_3gt AsH_3gt SbH_3("Basicity"alpha1/("SIZE of the central atom"))`
d) Reducing nature `alpha(1)/("Thermal stability")underset("reducing agent")underset("strong")(underset(UARR)(SbH_3))gtAsH_3gtPH_3gtunderset("weak reducing agent")underset(uarr)(NH_3)`


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