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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 lead of a pencil mainly contains _______.

  plastics

  lead

  graphite

  carbon black

  Half-n-half Clue
 

2.

The two allotropes of phosphorus are _______ and _______.

  Alpha, Beta

  Red, Yellow

  Crystalline, Amorphous

  Rhombic, Monoclinic

  Half-n-half Clue
 

3.

Which of the following is a chemical change?

  Boiling of water

  Freezing of water

  Rusting of iron

  Dissolving of salt in water

  Half-n-half Clue
 

4.

Lemon juice is _______ in nature.

  acidic

  metallic

  neutral

  basic

  Half-n-half Clue
 

5.

A substance that absorbs moisture is called _______.

  amorphous

  hygroscopic

  hydrophilic

  hydrophobic

  Half-n-half Clue
 

6.

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

  Metal

  Oxygen

  Non Metal

  Base

  Half-n-half Clue
 

7.

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

  a real solution

  a saturated solution

  an unstable solution

  a dispersed solution

  Half-n-half Clue
 


 
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