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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.

A pH below 7 indicates _______.

  alkalinity

  acidity

  presence of ions

  purity of the sample

  Half-n-half Clue
 

2.

The lead of a pencil mainly contains _______.

  graphite

  carbon black

  lead

  plastics

  Half-n-half Clue
 

3.

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

  Metal

  Non Metal

  Oxygen

  Base

  Half-n-half Clue
 

4.

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

  nitrogen

  Carbon dioxide

  hydrogen

  helium

  Half-n-half Clue
 

5.

Which of the following is not an acid?

  NaOH

  H2SO4

  HNO3

  HCl

  Half-n-half Clue
 

6.

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

  Oxidation

  Hydrogenation

  Reduction

  Combustion

  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 _______.

  cation

  catalyst

  counter ion

  nucleus

  Half-n-half Clue
 


 
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