1.

In basic medium the amountof Ni^(2+) in a solution can be estimated with the dimethylglyoxime reagent. The correct statemnt(s) about the reaction an the product is (are)

Answer»

in ammoniacal solution `Ni^(2+)` salts given cherry RED precipitate of nickel (II) dimethlglyoximate
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 with `Ni^(2+)`

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