In basic medium the amount of Ni^(2+) in...

In basic medium the amount of `Ni^(2+)` in a solution can be estimated with the dimethylglyoxime reagent. The correct statement (s) about the reaction and the product is (are)

in ammoniacal solution `Ni^(2+)` salts give cherry red precipitate of nickel (II) dimethylglyoximate

two dimethylglyoxiamte units are bound to one `Ni^(2+)`

in the complex dimethylglyoximate units are hydrogen bonded to each other

each dimethylglyoximate unit forms a six membered chelate ring wilth `Ni^(2+)`

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In basic medium the amount of Ni^(2+) in a solution can be estimated with the dimethylglyoxime reagent. The correct statement (s) abot the reaction and the product is ( are )

In ammonical solution `Ni^(2+)` salts give cherry-red precipitate of nickel (II) dimethylglyoximate

Two dimethylglyoximate units are bound to one `Ni^(2+)`

In the complex two dimethylglyoximate units are hydrogen bonded to each other

Each dimethylglyoximate unit forms a six-membered chelate ring twith `Ni^(2+)`

It is a pure single compound

It is mixture of two polysacchardes of glucose

It involves the `(C_(1)-C_(4)) alpha -` glucosidic linkage between two `alpha-D` glucose units.

It involves branching by `(C_(1) - C_(6))` glycosidic linkage.

The correct order of rate of reaction `C_(6)H_(6) gt C_(6)D_(6) gt C_(6)T_(6)`

`HNO_(3)` functions as an oxidising agent

In the absence of `HNO_(3)` it is reversible

The electrophil in the above reactions is `I^(o+)`