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# grade11

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Solid State

Solid State

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Halogens (Chlorine, Bromine and Iodine)

Halogens (Chlorine, Bromine and Iodine)

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Biology XI Question

Biology XI Question

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What is the effect of temperature on-

What is the effect of temperature on-

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What do you mean by boiling point and evaporation?

What do you mean by boiling point and evaporation?

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What happens to the vapour pressure of a solvent, when non volatile solute particles are dissolved in it?

What happens to the vapour pressure of a solvent, when non volatile solute particles are dissolved in it?

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Define coefficient of viscosity.

Define coefficient of viscosity.

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What is evaporation? How does it differ from boiling?

What is evaporation? How does it differ from boiling?

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What do you understand by the term surface tension?

What do you understand by the term surface tension?

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Why does boiling point of liquid rise on increasing pressure?

Why does boiling point of liquid rise on increasing pressure?

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The meniscus for mercury in a glass tube is concave downward. Explain.

The meniscus for mercury in a glass tube is concave downward. Explain.

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Give reason.

Give reason.

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Define Van’t Hoff’s factor. What for it used?

Define Van’t Hoff’s factor. What for it used?

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Define coefficient of viscosity. How coefficient of viscosity is related with viscous force?

Define coefficient of viscosity. How coefficient of viscosity is related with viscous force?

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Define aqueous tension. Why is it subtracted from the total pressure to determine the pressure of a dry gas?

Define aqueous tension. Why is it subtracted from the total pressure to determine the pressure of a dry gas?

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