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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.

Heat is liberated in

  Endothermic Reactions

  Substitution Reactions

  All chemical reactions

  Exothermic Reactions

  Half-n-half Clue
 

2.

The lead of a pencil mainly contains

  Graphite

  Plastics

  Lead

  Carbon Black

  Half-n-half Clue
 

3.

Which of the following is not an acid?

  NaOH

  H2SO4

  HCl

  HNO3

  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.

If no more solute can be dissolved in a solvent at a given temperature then that solution is called

  An Unstable Solution

  A Saturated Solution

  A Dispersed Solution

  A Real Solution

  Half-n-half Clue
 

6.

The two allotropes of phosphorus are

  Red Phosphorus, Yellow Phosphorus

  Crystalline Phosphorus, Amorphous Phosphorus

  Alpha Phosphorus, Beta Phosphorus

  Rhombic Phosphorus, Monoclinic Phosphorus

  Half-n-half Clue
 

7.

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

  True

  False

 


 
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