EASY

Earn 100

The table shows the processes required to separate different mixtures in four separate jars.

Jar Jar $1$ Jar $2$ Jar $3$ Jar $4$

Process Distillation Filtration Evaporation Sublimation

Which jar contains a mixture of two solids?

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Important Questions on Is Matter around Us Pure?

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

Which of the following compound can not be sublimed?

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

A suitable method for the separation of pure naphthalene from sandy naphthalene is:

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

"Complete melting of ice cream will not happen suddenly". Explain.

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

Which of the following does not undergo sublimation?

HARD

Science>Chemistry>Is Matter around Us Pure?>Mixture

The melting point of naphthalene is

80 ° C

and the room temperature is

30 ° C

. A sample of liquid naphthalene at

100 ° C

is cooled down to the room temperature. Draw a temperature time graph to represent this cooling. In the graph, mark the region which corresponds to the freezing process.

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

Which is a homogeneous mixture?

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

Which statement is not correct about a mixture?

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

Define two types of pure substances. Give three examples of each.

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Science>Chemistry>Is Matter around Us Pure?>Mixture

State points of difference between homogeneous and heterogeneous mixtures.

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

Give an example of a solid-solid mixture _____. (Rice and stones/ Salt and water)

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Science>Chemistry>Is Matter around Us Pure?>Mixture

The example of solid-solid solution is:

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Science>Chemistry>Is Matter around Us Pure?>Mixture

Milk is an example of:

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Science>Chemistry>Is Matter around Us Pure?>Mixture

Sucrose (sugar) crystals obtained from sugarcane and beetroot are mixed together. Will it be a pure substance or a mixture? Give reasons for the same.

MEDIUM

Science>Chemistry>Is Matter around Us Pure?>Mixture

Brass (an alloy of copper and zinc) is a:

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

Solution of sulphur in carbon disulphide is known as:

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

Which is not a mixture?

EASY

Science>Chemistry>Is Matter around Us Pure?>Mixture

Tyndall effect is produced in a