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Chemistry : Elements, Compounds & Mixtures


Answer the following questions by choosing the most appropriate option.

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Multiple choice

Your Performance  

1.

Stainless steel is a mixture (alloy) of _______, _______, chromium, and nickel.

  iron, carbon

  aluminum, tin

  lead, magnesium

  copper, zinc

  Half-n-half Clue
 

2.

Oxygen cannot be further subdivided into simpler substances by any physical or chemical means. Therefore, it is _______.

  a mixture

  an element

  a compound

  Half-n-half Clue
 

3.

Which of the following is a compound?

  Sodium sulfide

  Sodium

  Sodium sulfide solution

  Half-n-half Clue
 

4.

A mixture of water and oil is _______ in nature.

  homogeneous

  heterogeneous

 

5.

The constituents of a mixture do not retain their original properties.

  True

  False

 

6.

Copper sulfate can be further subdivided into simpler substances by chemical means only. Therefore, it is _______.

  a compound

  an element

  a mixture

  Half-n-half Clue
 

7.

Potassium sulfide solution is a _______ mixture.

  homogeneous

  heterogeneous

 


 
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