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In basic medium, the amount of Ni2+ in a solution can be estimated with the dimethylglyoxime reagent. The correct statements about the reaction and the product are:
  • a)
    In ammoniacal solution, Ni2+ salts give cherry-red precipitate of nickel(II) dimethylglyoximate
  • b)
    Two dimethylglyoximate units are bound to one Ni2+
  • c)
    In the complex, two dimethylglyoximate units are hydrogen bounded to each other.
  • d)
    Each dimethylglyoximate unit forms a six membered chelate ring with Ni2+
Correct answer is option 'A,B,C'. Can you explain this answer?
Most Upvoted Answer
In basic medium, the amount of Ni2+ in a solution can be estimated wit...
**Answer:**

The correct statements about the reaction and the product are as follows:

**a) In ammoniacal solution, Ni2 salts give cherry-red precipitate of nickel(II) dimethylglyoximate:**

When Ni2 salts are present in an ammoniacal solution, they react with the dimethylglyoxime reagent to form a cherry-red precipitate of nickel(II) dimethylglyoximate. This reaction is specific to Ni2 ions and is used as a qualitative test for the presence of nickel ions in a solution.

**b) Two dimethylglyoximate units are bound to one Ni2:**

In the reaction between Ni2 salts and dimethylglyoxime, two dimethylglyoximate units are bound to one Ni2 ion. This is confirmed by the formation of a precipitate, which indicates the formation of a complex between the Ni2 ion and the dimethylglyoximate ligands.

**c) In the complex, two dimethylglyoximate units are hydrogen bonded to each other:**

In the complex formed between Ni2 and dimethylglyoximate, the two dimethylglyoximate units are hydrogen bonded to each other. This bonding helps stabilize the complex and contributes to the formation of the cherry-red precipitate.

**d) Each dimethylglyoximate unit forms a six-membered chelate ring with Ni2:**

In the complex formed between Ni2 and dimethylglyoximate, each dimethylglyoximate unit forms a six-membered chelate ring with the Ni2 ion. A chelate ring is a cyclic structure formed by the coordination of a ligand to a metal ion, and in this case, the dimethylglyoximate ligand coordinates to the Ni2 ion, forming a stable chelate ring.

In summary, when Ni2 salts are present in an ammoniacal solution, they react with the dimethylglyoxime reagent to form a cherry-red precipitate of nickel(II) dimethylglyoximate. In this complex, two dimethylglyoximate units are bound to one Ni2 ion, and each dimethylglyoximate unit forms a six-membered chelate ring with the Ni2 ion. The complex is stabilized by the hydrogen bonding between the two dimethylglyoximate units. This reaction and the resulting product are used to estimate the amount of Ni2 in a solution.
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In basic medium, the amount of Ni2+ in a solution can be estimated with the dimethylglyoxime reagent. The correct statements about the reaction and the product are:a)In ammoniacal solution, Ni2+ salts give cherry-red precipitate of nickel(II) dimethylglyoximateb)Two dimethylglyoximate units are bound to one Ni2+c)In the complex, two dimethylglyoximate units are hydrogen bounded to each other.d)Each dimethylglyoximate unit forms a six membered chelate ring with Ni2+Correct answer is option 'A,B,C'. Can you explain this answer?
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In basic medium, the amount of Ni2+ in a solution can be estimated with the dimethylglyoxime reagent. The correct statements about the reaction and the product are:a)In ammoniacal solution, Ni2+ salts give cherry-red precipitate of nickel(II) dimethylglyoximateb)Two dimethylglyoximate units are bound to one Ni2+c)In the complex, two dimethylglyoximate units are hydrogen bounded to each other.d)Each dimethylglyoximate unit forms a six membered chelate ring with Ni2+Correct answer is option 'A,B,C'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about In basic medium, the amount of Ni2+ in a solution can be estimated with the dimethylglyoxime reagent. The correct statements about the reaction and the product are:a)In ammoniacal solution, Ni2+ salts give cherry-red precipitate of nickel(II) dimethylglyoximateb)Two dimethylglyoximate units are bound to one Ni2+c)In the complex, two dimethylglyoximate units are hydrogen bounded to each other.d)Each dimethylglyoximate unit forms a six membered chelate ring with Ni2+Correct answer is option 'A,B,C'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In basic medium, the amount of Ni2+ in a solution can be estimated with the dimethylglyoxime reagent. The correct statements about the reaction and the product are:a)In ammoniacal solution, Ni2+ salts give cherry-red precipitate of nickel(II) dimethylglyoximateb)Two dimethylglyoximate units are bound to one Ni2+c)In the complex, two dimethylglyoximate units are hydrogen bounded to each other.d)Each dimethylglyoximate unit forms a six membered chelate ring with Ni2+Correct answer is option 'A,B,C'. Can you explain this answer?.
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