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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 acidic

  a basic

  an unknown

  a neutral

  Half-n-half Clue
 

2.

A pH scale reading of 13 indicates a _______.

  weak base

  strong acid

  strong base

  weak acid

  Half-n-half Clue
 

3.

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

  a neutral

  an acidic

  a basic

  an unknown

  Half-n-half Clue
 

4.

Pure distilled water gives a pH scale reading equal to _______.

  14

  1

  7

  0

  Half-n-half Clue
 

5.

A pH scale reading equal to 7 indicates _______ medium.

  a basic

  an acidic

  a neutral

  an unknown

  Half-n-half Clue
 

6.

Sodium hydroxide turns red litmus paper blue.

  True

  False

 

7.

Sulfuric acid turns red litmus paper blue.

  True

  False

 

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