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H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]
- a)presence of HCl decr eases the sulphide ion concentration.
- b)solubility product of group II sulph ides is more than that of group IV sulphides.
- c)presence of HCl increases the sulphide ion concentration.
- d)sulphides of group IV cations are unstable in HCl.
Correct answer is option 'A'. Can you explain this answer?
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H2S gas when passed through a solution of cations containing HCl preci...
IVth group needs higher S2– i on concentration. In presence of HCl, the dissociation of H2S decreases hence produces less amount of sulphide ions due to common ion effect, thus HCl decreases the solubility of H2S which is sufficient to precipitate IInd group radicals.
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H2S gas when passed through a solution of cations containing HCl preci...
Explanation:
When H2S gas is passed through a solution of cations containing HCl, it precipitates the cations of the second group of qualitative analysis but not those belonging to the fourth group. This is because of the following reasons:
1. Sulphide Ion Concentration:
The presence of HCl decreases the sulphide ion concentration. HCl is a strong acid and it ionizes completely in water, producing a high concentration of H+ ions. These H+ ions react with the S2- ions from the H2S gas to form H2S molecules. This reaction reduces the concentration of S2- ions available for precipitation with cations of the fourth group.
2. Solubility Product:
The solubility product of group II sulphides is more than that of group IV sulphides. The solubility product is a measure of the extent to which a compound dissolves in water. Group II sulphides have a higher solubility product, which means they are more soluble in water compared to the sulphides of group IV cations. Therefore, when H2S gas is passed through a solution of cations containing HCl, the cations of the second group precipitate because their sulphides have a lower solubility product and are less soluble in water.
3. Sulphides Stability:
The sulphides of group IV cations are unstable in HCl. HCl is a strong acid and it can dissociate in water to release H+ ions. These H+ ions can react with the sulphides of group IV cations, causing them to decompose and form other compounds. This instability of group IV sulphides in the presence of HCl prevents their precipitation when H2S gas is passed through a solution of cations containing HCl.
Therefore, the correct answer is option 'A': the presence of HCl decreases the sulphide ion concentration.
When H2S gas is passed through a solution of cations containing HCl, it precipitates the cations of the second group of qualitative analysis but not those belonging to the fourth group. This is because of the following reasons:
1. Sulphide Ion Concentration:
The presence of HCl decreases the sulphide ion concentration. HCl is a strong acid and it ionizes completely in water, producing a high concentration of H+ ions. These H+ ions react with the S2- ions from the H2S gas to form H2S molecules. This reaction reduces the concentration of S2- ions available for precipitation with cations of the fourth group.
2. Solubility Product:
The solubility product of group II sulphides is more than that of group IV sulphides. The solubility product is a measure of the extent to which a compound dissolves in water. Group II sulphides have a higher solubility product, which means they are more soluble in water compared to the sulphides of group IV cations. Therefore, when H2S gas is passed through a solution of cations containing HCl, the cations of the second group precipitate because their sulphides have a lower solubility product and are less soluble in water.
3. Sulphides Stability:
The sulphides of group IV cations are unstable in HCl. HCl is a strong acid and it can dissociate in water to release H+ ions. These H+ ions can react with the sulphides of group IV cations, causing them to decompose and form other compounds. This instability of group IV sulphides in the presence of HCl prevents their precipitation when H2S gas is passed through a solution of cations containing HCl.
Therefore, the correct answer is option 'A': the presence of HCl decreases the sulphide ion concentration.
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H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer?
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H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer?.
H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer?.
Solutions for H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
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Here you can find the meaning of H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice H2S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is be cau se [2005]a)presence of HCl decr eases the sulphide ion concentration.b)solubility product of group II sulph ides is more than that of group IV sulphides.c)presence of HCl increases the sulphide ion concentration.d)sulphides of group IV cations are unstable in HCl.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 11 tests.
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