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Chemistry : General Chemistry


Answer the following questions by choosing the most appropriate option.

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Multiple choice

Your Performance  

1.

The 'fizz' in soft drinks is caused by _______.

  hydrogen

  nitrogen

  helium

  Carbon dioxide

  Half-n-half Clue
 

2.

Heat is liberated in _______ reactions.

  substitution

  endothermic

  all chemical

  exothermic

  Half-n-half Clue
 

3.

Which of the following gases is green in color?

  Hydrogen

  Chlorine

  Neon

  Krypton

  Half-n-half Clue
 

4.

Catalysts speed up the rate of chemical reactions.

  True

  False

 

5.

What gas is evolved when dilute sulfuric acid is added to zinc?

  Argon

  Sulfur Dioxide

  Hydrogen Peroxide

  Hydrogen

  Half-n-half Clue
 

6.

The two allotropes of phosphorus are _______ and _______.

  Alpha, Beta

  Crystalline, Amorphous

  Red, Yellow

  Rhombic, Monoclinic

  Half-n-half Clue
 

7.

What is the combination of any substance with oxygen known as?

  Reduction

  Hydrogenation

  Oxidation

  Combustion

  Half-n-half Clue
 


 
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