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

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

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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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+)`

Product A and C are isomers.

Product A and C are Identical.

Conversion of B to product C is via E2 mechanism.

Conversion of A to product B is nucleophilic addition reaction.

It is termed as `beta-` elimination reaction

`C_2H_5O` is a Bronsted-base

Products are 1-butene and 2-butene

All of the above