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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.

A substance that speeds up the rate of a chemical reaction without undergoing any change itself is known as a _______.

  catalyst

  nucleus

  cation

  counter ion

  Half-n-half Clue
 

2.

Acids turn blue litmus paper _______.

  pink

  colorless

  red

  yellow

  Half-n-half Clue
 

3.

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

  Non Metal

  Metal

  Oxygen

  Base

  Half-n-half Clue
 

4.

Which of the following is not an allotrope of carbon?

  Graphite

  Silk

  Charcoal

  Diamond

  Half-n-half Clue
 

5.

Catalysts speed up the rate of chemical reactions.

  True

  False

 

6.

The lead of a pencil mainly contains _______.

  graphite

  lead

  carbon black

  plastics

  Half-n-half Clue
 

7.

Which of the following is not a physical change?

  Precipitation

  Distillation

  Oxidation

  Decantation

  Half-n-half Clue
 


 
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