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Sublimation

Q.When mercur...

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Q.When mercuric iodide is added to the aqueous solution of KI then the 1. boiling point is raised 2. boiling point does not change 3. freezing point is lowered 4.freezing point is raised

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Q. Assertion :When mercuric iodide is added to the aqueous solution of

K I

, the freezing point is raised.
Reason:

H g I_{2}

K I

forming complex ion

[H g I_{4}]^{2 -}

.

Q. What will happen to freezing point of a potassium iodide aqueous solution when mercuric Iodide as added to solution. Explain.

When CuSO4 is added to solution of ammonia then why freezing point is raised

Q. Which of the following statement(s) is/are true?
i. Adding a solute raises the vapor pressure & boiling point.
ii. The change in boiling & freezing point depends on molality.
iii. The number of solute particles in a solvent is an important factor in determining the boiling point elevation.

Q. When water is heated at its boiling point or melting point, its temperature does not change.
a) What is meant by boiling point and melting point?
b) What are the boiling and freezing points of water?
c) Why is there no change in temperature?

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