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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

  helium

  Carbon dioxide

  nitrogen

  Half-n-half Clue
 

2.

Which of the following is not an acid?

  HNO3

  HCl

  H2SO4

  NaOH

  Half-n-half Clue
 

3.

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

  True

  False

 

4.

The lead of a pencil mainly contains _______.

  lead

  plastics

  carbon black

  graphite

  Half-n-half Clue
 

5.

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

  Combustion

  Reduction

  Oxidation

  Hydrogenation

  Half-n-half Clue
 

6.

Which of the following is a chemical change?

  Boiling of water

  Freezing of water

  Dissolving of salt in water

  Rusting of iron

  Half-n-half Clue
 

7.

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

  counter ion

  nucleus

  catalyst

  cation

  Half-n-half Clue
 


 
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