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Science Quiz : General Chemistry


Given the QUESTION, identify the ANSWER

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Multiple choice

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1.

Which of the following is not an acid?

  NaOH

  HCl

  HNO3

  H2SO4

  Half-n-half Clue
 

2.

Heat is liberated in

  All chemical reactions

  Exothermic Reactions

  Substitution Reactions

  Endothermic Reactions

  Half-n-half Clue
 

3.

Which of the following is not a physical change?

  Oxidation

  Precipitation

  Decantation

  Distillation

  Half-n-half Clue
 

4.

Which of the following is a chemical change?

  Boiling of water

  Rusting of iron

  Dissolving of salt in water

  Freezing of water

  Half-n-half Clue
 

5.

A substance that absorbs moisture is known as

  Amorphous

  Hydrophilic

  Hydrophobic

  Hygroscopic

  Half-n-half Clue
 

6.

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

  Combustion

  Reduction

  Oxidation

  Hydrogenation

  Half-n-half Clue
 

7.

The lead of a pencil mainly contains

  Plastics

  Carbon Black

  Lead

  Graphite

  Half-n-half Clue
 


 
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