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Chemistry : Metals


Answer the following questions by choosing the most appropriate option.

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Multiple choice

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1.

If a metal's ore is titled 'pyrites', then it most probably contains _______.

  chlorine

  oxygen

  nitrogen

  sulfur

  Half-n-half Clue
 

2.

Metals are obtained from their oxides by the process of _______.

  electrolytic separation

  roasting

  reduction

  oxidation

  Half-n-half Clue
 

3.

Which metal is extracted from the ore 'bauxite'?

  Iron

  Gold

  Aluminum

  Tungsten

  Half-n-half Clue
 

4.

Which of the following metals is often found in the pure state?

  Gold

  Aluminum

  Magnesium

  Iron

  Half-n-half Clue
 

5.

An alloy is _______.

  a compound of three elements

  a mixture of three elements

  an element in the impure form

  a solid solution of two or more metals

  Half-n-half Clue
 

6.

Rust on iron is basically _______.

  a chloride

  a nitride

  an oxide

  a sulphide

  Half-n-half Clue
 

7.

To prevent corrosion, metals are often galvanized by covering them with a layer of _______.

  copper

  tin

  zinc

  sodium

  Half-n-half Clue
 


 
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