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Gunpowder is a 

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Important Questions on Is Matter around Us Pure?

EASY
Science>Chemistry>Is Matter around Us Pure?>Mixture
The alloy nichrome contains
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Science>Chemistry>Is Matter around Us Pure?>Mixture
Which one of the following alloy does not contain copper?
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Science>Chemistry>Is Matter around Us Pure?>Mixture
Which one of the following is not a homogeneous mixture?
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Science>Chemistry>Is Matter around Us Pure?>Mixture
What is heat treatment of steel? Explain.
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Science>Chemistry>Is Matter around Us Pure?>Mixture
What are alloy steels?
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Science>Chemistry>Is Matter around Us Pure?>Mixture

Give one word for the following statement:

  • The substance prepared by adding other metals to a base metal in appropriate proportions to obtain certain desirable properties.
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Science>Chemistry>Is Matter around Us Pure?>Mixture

Name an alloy of lead and tin.

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Science>Chemistry>Is Matter around Us Pure?>Mixture
What are alloys? Give two examples. 
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Science>Chemistry>Is Matter around Us Pure?>Mixture
Why is kerosene considered a mixture? 
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Science>Chemistry>Is Matter around Us Pure?>Mixture
All mixtures are homogeneous in nature.
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Science>Chemistry>Is Matter around Us Pure?>Mixture

Match the items in column A with the items in column B.

Column A Column B
1.Bronze      a.Compound
2.Glucose  b.Element having the highest abundance in the earth's crust
3.Silver      c.Mixture
4.Oxygen      d.Metal having the highest abundance in the earth's crust
5.Face cream      e.Element
6.Soap lather      f.Emulsion
7.Aluminium      g.Tyndall effect
8.Colloid          h.Foam

 

HARD
Science>Chemistry>Is Matter around Us Pure?>Mixture
List the points of differences between homogeneous and heterogeneous mixtures.
EASY
Science>Chemistry>Is Matter around Us Pure?>Mixture
In a mixture containing sugar and sand, the constituent(s) is/are _____.
   
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Science>Chemistry>Is Matter around Us Pure?>Mixture
Explain why coal is regarded as a mixture and not a pure substance.
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Science>Chemistry>Is Matter around Us Pure?>Mixture
Brass is a mixture of two elements copper and tin.
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Science>Chemistry>Is Matter around Us Pure?>Mixture

A solution of glucose in water is a homogeneous mixture.

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Science>Chemistry>Is Matter around Us Pure?>Mixture
Which of the following is a homogeneous material?
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Science>Chemistry>Is Matter around Us Pure?>Mixture

Clean air is a _____ mixture.

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

A single substance of a definite composition is called a/an _____.

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Science>Chemistry>Is Matter around Us Pure?>Mixture
Name two types of mixtures.