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PASSAGE-2
An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).
The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)
An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).
The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)
Q. The coloured solution S contains
- a)Fe2(SO4)3
- b)CuSO4
- c)ZnSO4
- d)Na2CrO4
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when...
The filtrate on treatment with ammoniacal H2S gives a precipitate which dissolves in aqueous NaOH containing H2O2 giving a coloured solution. It contains Cr3+ ion.
Most Upvoted Answer
PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when...
Explanation:
Identification of inorganic salts present in the mixture can be done by performing a series of qualitative analysis tests.
1. Precipitation Test with Dilute HCl:
The aqueous solution of the mixture of two inorganic salts was treated with dilute HCl. The formation of a precipitate (P) indicates the presence of an insoluble salt.
2. Solubility Test of Precipitate P:
The precipitate P obtained from the first test was found to dissolve in hot water. This indicates that the precipitate P could be a hydroxide, carbonate or sulphide of a cation that is soluble in hot water.
3. Test with H2S in Dilute Mineral Acid Medium:
The filtrate (Q) obtained from the first test was treated with H2S in dilute mineral acid medium. The absence of a precipitate indicates the absence of sulphides, mercury or lead salts in the mixture.
4. Test with H2S in Ammoniacal Medium:
The filtrate (Q) obtained from the first test was treated with H2S in an ammoniacal medium. The formation of a precipitate (R) indicates the presence of cations that form sulphides that are insoluble in water but soluble in ammonium hydroxide.
5. Test with H2O2 in Aqueous NaOH Medium:
The precipitate (R) obtained from the previous test was treated with H2O2 in aqueous NaOH medium. The formation of a coloured solution (S) indicates the presence of cations that form coloured complexes.
The possible cations that could be present in the mixture are Fe2+, Cu2+, Zn2+ and CrO42-. The coloured solution (S) obtained from the previous test could be due to the formation of a coloured complex of CrO42-.
Hence, the correct answer is option (D) Na2CrO4.
Identification of inorganic salts present in the mixture can be done by performing a series of qualitative analysis tests.
1. Precipitation Test with Dilute HCl:
The aqueous solution of the mixture of two inorganic salts was treated with dilute HCl. The formation of a precipitate (P) indicates the presence of an insoluble salt.
2. Solubility Test of Precipitate P:
The precipitate P obtained from the first test was found to dissolve in hot water. This indicates that the precipitate P could be a hydroxide, carbonate or sulphide of a cation that is soluble in hot water.
3. Test with H2S in Dilute Mineral Acid Medium:
The filtrate (Q) obtained from the first test was treated with H2S in dilute mineral acid medium. The absence of a precipitate indicates the absence of sulphides, mercury or lead salts in the mixture.
4. Test with H2S in Ammoniacal Medium:
The filtrate (Q) obtained from the first test was treated with H2S in an ammoniacal medium. The formation of a precipitate (R) indicates the presence of cations that form sulphides that are insoluble in water but soluble in ammonium hydroxide.
5. Test with H2O2 in Aqueous NaOH Medium:
The precipitate (R) obtained from the previous test was treated with H2O2 in aqueous NaOH medium. The formation of a coloured solution (S) indicates the presence of cations that form coloured complexes.
The possible cations that could be present in the mixture are Fe2+, Cu2+, Zn2+ and CrO42-. The coloured solution (S) obtained from the previous test could be due to the formation of a coloured complex of CrO42-.
Hence, the correct answer is option (D) Na2CrO4.
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PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer?
Question Description
PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer?.
PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer?.
Solutions for PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
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Here you can find the meaning of PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer?, a detailed solution for PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice PASSAGE-2An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q).The precipitate P was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with H2S in a dilute mineral acid medium. However, it gave a precipitate (R) with H2S in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with H2O2 in an aqueous NaOH medium. (JEE Adv. 2013-II)Q. The coloured solution S containsa)Fe2(SO4)3b)CuSO4c)ZnSO4d)Na2CrO4Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice JEE tests.
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