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When mercuric iodide is added to the aqueous solution of potassium iodide, the
- a)freezing point is raised
- b)freezing point does not change
- c)freezing point is lowered
- d)boiling point does not change
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
When mercuric iodide is added to the aqueous solution of potassium iod...
When solid mercuric iodide is added to an aqueous solution of KI, the freezing point of the solution is raised.
Reason: Addition of solid mercuric iodide to an aqueous solution of KI form a complex compound K2[HgI4]
Due to the formation of complex the number of ions in the solution decreases. As a result freezing point raises.
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When mercuric iodide is added to the aqueous solution of potassium iod...
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When mercuric iodide is added to the aqueous solution of potassium iod...
When mercuric iodide (HgI2) is added to an aqueous solution of potassium iodide (KI), the freezing point is raised. This phenomenon is known as freezing point elevation.
Explanation:
- Freezing point elevation occurs when a solute is added to a solvent, increasing the boiling point of the solution compared to the pure solvent.
- In this case, mercuric iodide (HgI2) is the solute and the aqueous solution of potassium iodide (KI) is the solvent.
- When HgI2 dissolves in water, it dissociates into Hg2+ and 2I- ions.
- The presence of these ions disrupts the regular structure of water molecules, making it more difficult for the water to freeze.
- As a result, the freezing point of the solution is raised compared to pure water.
Key Points:
1. Freezing point elevation occurs when a solute is added to a solvent.
2. Mercuric iodide (HgI2) is the solute in this case.
3. The aqueous solution of potassium iodide (KI) is the solvent.
4. The presence of Hg2+ and I- ions disrupts the regular structure of water molecules.
5. This disruption makes it more difficult for the water to freeze.
6. The freezing point of the solution is raised compared to pure water.
In summary, when mercuric iodide is added to the aqueous solution of potassium iodide, the freezing point is raised due to the phenomenon of freezing point elevation.
Explanation:
- Freezing point elevation occurs when a solute is added to a solvent, increasing the boiling point of the solution compared to the pure solvent.
- In this case, mercuric iodide (HgI2) is the solute and the aqueous solution of potassium iodide (KI) is the solvent.
- When HgI2 dissolves in water, it dissociates into Hg2+ and 2I- ions.
- The presence of these ions disrupts the regular structure of water molecules, making it more difficult for the water to freeze.
- As a result, the freezing point of the solution is raised compared to pure water.
Key Points:
1. Freezing point elevation occurs when a solute is added to a solvent.
2. Mercuric iodide (HgI2) is the solute in this case.
3. The aqueous solution of potassium iodide (KI) is the solvent.
4. The presence of Hg2+ and I- ions disrupts the regular structure of water molecules.
5. This disruption makes it more difficult for the water to freeze.
6. The freezing point of the solution is raised compared to pure water.
In summary, when mercuric iodide is added to the aqueous solution of potassium iodide, the freezing point is raised due to the phenomenon of freezing point elevation.
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When mercuric iodide is added to the aqueous solution of potassium iodide, thea)freezing point is raisedb)freezing point does not changec)freezing point is loweredd)boiling point does not changeCorrect answer is option 'A'. Can you explain this answer?
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