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(a) A coordination compound is composed of one Co(III), one chloride, one sulfate and four molecules of ammonia. The aqueous solution of the compound gives no precipitate when combined with aqueous BaCl2, while a white precipitate is formed with aqueous AgNO3 solution. Draw its structure and explain the observations with chemical equations.
(b) Draw the structure of dimethylglyoxime (DMGH2) and its Ni(II) complex formed in aqueous ammonia.
Correct answer is '(a) Complex is [Co(NH3)4SO4]Cl'. Can you explain this answer?
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(a) A coordination compound is composed of one Co(III), one chloride, ...
(a) Complex is [Co(NH3)4SO4]Cl
 No reaction. since SO42– is present in the coordination sphere.
 
Cl is present in the ionic sphere
 [DMGH2] → Dimethyl glyoximato  
[Ni(II)(DMGH)2] complex → 
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(a) A coordination compound is composed of one Co(III), one chloride, ...
Structure and Explanation of the Coordination Compound [Co(NH3)4SO4]Cl

Structure:
The coordination compound is composed of one Co(III), one chloride, one sulfate, and four molecules of ammonia. The structure of the compound can be represented as [Co(NH3)4SO4]Cl.

Explanation:
1. Reaction with BaCl2:
When the aqueous solution of the compound is combined with aqueous BaCl2, no precipitate is formed. This can be explained by the following chemical equation:

[Co(NH3)4SO4]Cl + BaCl2 → [Co(NH3)4SO4]2+ + 2Cl- + Ba2+

In this reaction, the chloride ions from the coordination compound are exchanged with the chloride ions from BaCl2 to form [Co(NH3)4SO4]2+ and Ba2+. Since BaSO4 is insoluble in water, no precipitate is formed.

2. Reaction with AgNO3:
When the aqueous solution of the compound is combined with aqueous AgNO3, a white precipitate is formed. This can be explained by the following chemical equation:

[Co(NH3)4SO4]Cl + 2AgNO3 → [Co(NH3)4SO4]2+ + 2Cl- + 2Ag+

In this reaction, the chloride ions from the coordination compound are exchanged with the nitrate ions from AgNO3 to form [Co(NH3)4SO4]2+ and AgCl. Since AgCl is insoluble in water, a white precipitate is formed.

Summary:
The coordination compound [Co(NH3)4SO4]Cl is composed of one Co(III), one chloride, one sulfate, and four molecules of ammonia. When it reacts with BaCl2, no precipitate is formed as BaSO4 is insoluble in water. However, when it reacts with AgNO3, a white precipitate of AgCl is formed.
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(a) A coordination compound is composed of one Co(III), one chloride, one sulfate and four molecules of ammonia. The aqueous solution of the compound gives no precipitate when combined with aqueous BaCl2, while a white precipitate is formed with aqueous AgNO3 solution. Draw its structure and explain the observations with chemical equations.(b) Draw the structure of dimethylglyoxime (DMGH2) and its Ni(II) complex formed in aqueous ammonia.Correct answer is '(a) Complex is [Co(NH3)4SO4]Cl'. Can you explain this answer?
Question Description
(a) A coordination compound is composed of one Co(III), one chloride, one sulfate and four molecules of ammonia. The aqueous solution of the compound gives no precipitate when combined with aqueous BaCl2, while a white precipitate is formed with aqueous AgNO3 solution. Draw its structure and explain the observations with chemical equations.(b) Draw the structure of dimethylglyoxime (DMGH2) and its Ni(II) complex formed in aqueous ammonia.Correct answer is '(a) Complex is [Co(NH3)4SO4]Cl'. Can you explain this answer? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about (a) A coordination compound is composed of one Co(III), one chloride, one sulfate and four molecules of ammonia. The aqueous solution of the compound gives no precipitate when combined with aqueous BaCl2, while a white precipitate is formed with aqueous AgNO3 solution. Draw its structure and explain the observations with chemical equations.(b) Draw the structure of dimethylglyoxime (DMGH2) and its Ni(II) complex formed in aqueous ammonia.Correct answer is '(a) Complex is [Co(NH3)4SO4]Cl'. Can you explain this answer? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for (a) A coordination compound is composed of one Co(III), one chloride, one sulfate and four molecules of ammonia. The aqueous solution of the compound gives no precipitate when combined with aqueous BaCl2, while a white precipitate is formed with aqueous AgNO3 solution. Draw its structure and explain the observations with chemical equations.(b) Draw the structure of dimethylglyoxime (DMGH2) and its Ni(II) complex formed in aqueous ammonia.Correct answer is '(a) Complex is [Co(NH3)4SO4]Cl'. Can you explain this answer?.
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