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9th CBSE
IMPORTANT
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What is fractional distillation? What is the use of fractionating column in fractional distillation?

Important Questions on Is Matter Around Us Pure

MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 2 - Is Matter Around Us Pure>Exercise>Q 3
Draw a labelled diagram of the fractional distillation apparatus used for separating a mixture of alcohol and water.
MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 2 - Is Matter Around Us Pure>Exercise>Q 4
How can we separate a mixture of sodium chloride and ammonium chloride? Draw a labelled diagram to show the set up for the process.
MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 2 - Is Matter Around Us Pure>Exercise>Q 4
Name two substances which can be separated from their mixture by the method of sublimation.
MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 2 - Is Matter Around Us Pure>Exercise>Q 1
The liquid air has three components X, Y and Z whose boiling points are –186 °C, –183 °C, –196 °C respectively. When liquid air is fed into a tall fractional distillation column near its bottom and warmed up slowly, Which component will be collected at near the bottom of the fractional distillation column? Why?
MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 2 - Is Matter Around Us Pure>Exercise>Q 1
The liquid air has three components X, Y and Z whose boiling points are –186 °C, –183 °C, –196 °C respectively. When liquid air is fed into a tall fractional distillation column near its bottom and warmed up slowly. Which component will be collected at the top part of the fractional distillation column? Why?
MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 2 - Is Matter Around Us Pure>Exercise>Q 1
The liquid air has three components X, Y and Z whose boiling points are –186 °C, –183 °C, –196 °C respectively. When liquid air is fed into a tall fractional distillation column near its bottom and warmed up slowly.

Which component will be collected at the middle part of the fractional distillation column? Why?

MEDIUM
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 2 - Is Matter Around Us Pure>Exercise>Q 1
The liquid air has three components X, Y and Z whose boiling points are –186 °C, –183 °C, –196 °C respectively. When liquid air is fed into a tall fractional distillation column near its bottom and warmed up slowly.

What could the component X, Y and Z be?

HARD
9th CBSE
IMPORTANT
Chemistry for Class IX>Chapter 2 - Is Matter Around Us Pure>Exercise>Q 2

Tincture of iodine is a mixture of two materials X and Y. The material Y has a property that its solid form can be converted directly into vapours on heating by a process called Z.

What could X be?