1.

The reducing power of divalent species decrease in the order

Answer»

`GegtSngtPb`
`SngtGegtPb`
`PbgtSngtGe`
NONE of these

Solution :The STABILITY of +2 O.S follows the ORDER`PB^(2+)gtSn^(2+)gtGe^(2+)`
HENCE reducing power,`GegtSngtPb`


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