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Given below are few electrolytes, indicate which one among them will bring about the coagulation of gold sol quickest and in least concentration- a) NaCl b)MgSO4 c) Al2(SO4)3 d)K4[Fe(CN)6] The correct option is C. Can anyone explain?
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Given below are few electrolytes, indicate which one among them will b...
Explanation:

  • Gold Sol: It is a colloidal solution of gold particles in water and is negatively charged.

  • Coagulation: It is the process of settling down of colloidal particles by the addition of an electrolyte.

  • Factors affecting coagulation: The factors that affect coagulation are charge, size, and stability of colloidal particles.

  • Electrolytes: Electrolytes are substances that conduct electricity when dissolved in water and dissociate into ions.

  • Coagulation of Gold Sol: The coagulation of gold sol is due to the decrease in the negative charge on gold particles by the addition of an electrolyte.

  • Least Concentration: The electrolyte that brings about coagulation at the lowest concentration will be the most effective.

  • Options:


    • NaCl: It is a strong electrolyte and will bring about coagulation of gold sol at a higher concentration.

    • MgSO4: It is a divalent cation and will bring about coagulation of gold sol at a higher concentration.

    • Al2(SO4)3: It is a trivalent cation and will bring about coagulation of gold sol at a lower concentration due to the higher charge density.

    • K4[Fe(CN)6]: It is a complex ion and will not bring about coagulation of gold sol.


  • Conclusion: Therefore, option C- Al2(SO4)3 will bring about the coagulation of gold sol quickest and in the least concentration among the given electrolytes.

Community Answer
Given below are few electrolytes, indicate which one among them will b...
Becz. Al has maximum charege on it
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Given below are few electrolytes, indicate which one among them will bring about the coagulation of gold sol quickest and in least concentration- a) NaCl b)MgSO4 c) Al2(SO4)3 d)K4[Fe(CN)6] The correct option is C. Can anyone explain?
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Given below are few electrolytes, indicate which one among them will bring about the coagulation of gold sol quickest and in least concentration- a) NaCl b)MgSO4 c) Al2(SO4)3 d)K4[Fe(CN)6] The correct option is C. Can anyone explain? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Given below are few electrolytes, indicate which one among them will bring about the coagulation of gold sol quickest and in least concentration- a) NaCl b)MgSO4 c) Al2(SO4)3 d)K4[Fe(CN)6] The correct option is C. Can anyone explain? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Given below are few electrolytes, indicate which one among them will bring about the coagulation of gold sol quickest and in least concentration- a) NaCl b)MgSO4 c) Al2(SO4)3 d)K4[Fe(CN)6] The correct option is C. Can anyone explain?.
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