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Chemistry : Indicators, pH & Litmus


Answer the following questions by choosing the most appropriate option.

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Multiple choice

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1.

A pH scale reading of less than 7 indicates _______ medium.

  an unknown

  a basic

  a neutral

  an acidic

  Half-n-half Clue
 

2.

A pH scale reading equal to 7 indicates _______ medium.

  an acidic

  a neutral

  a basic

  an unknown

  Half-n-half Clue
 

3.

Methyl orange solution turns bases _______.

  orange

  colorless

  pink

  yellow

  Half-n-half Clue
 

4.

A pH scale reading of _______ indicates a weak base.

  8

  2

  6

  13

  Half-n-half Clue
 

5.

A pH scale reading of more than 7 indicates _______ medium.

  an unknown

  a basic

  an acidic

  a neutral

  Half-n-half Clue
 

6.

A pH scale reading of 2 indicates a _______.

  strong acid

  strong base

  weak base

  weak acid

  Half-n-half Clue
 

7.

Phenolphthalein solution turns bases _______.

  orange

  pink

  colorless

  yellow

  Half-n-half Clue
 


 
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