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Chemistry : General Chemistry


Answer the following questions by choosing the most appropriate option.

Formats Info Page Quiz Review
Multiple choice

Your Performance  

1.

Catalysts speed up the rate of chemical reactions.

  True

  False

 

2.

Fill in the missing word:
Acid + _______ = Salt + Water

  Base

  Oxygen

  Metal

  Non Metal

  Half-n-half Clue
 

3.

A pH below 7 indicates _______.

  presence of ions

  purity of the sample

  alkalinity

  acidity

  Half-n-half Clue
 

4.

A substance that absorbs moisture is called _______.

  hygroscopic

  hydrophobic

  amorphous

  hydrophilic

  Half-n-half Clue
 

5.

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

  Hydrogen Peroxide

  Sulfur Dioxide

  Hydrogen

  Argon

  Half-n-half Clue
 

6.

Solubility of a substance in a solvent usually increases with an increase in temperature.

  True

  False

 

7.

Which of the following is a chemical change?

  Dissolving of salt in water

  Freezing of water

  Boiling of water

  Rusting of iron

  Half-n-half Clue
 


 
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