Acids and Physical Properties of Acids


 
 
Concept Explanation
 

Acids and Physical Properties of Acids

Acid: Acids can be defined as substances which are sour in taste, turns blue litmus paper red and are corrosive in nature. Substances containing an acid are called acidic substances.

Properties of Acids:

  • Acids are sour of taste and are corrosive in nature. Acids also corrode metals eg. Iron, Aluminium etc. That  is why acids are stored in glass ware.
  • Acids are polar nature so are soluble in water.
  • Acids can be either dilute or concentrated. If amount of water is more in an acid, it is called dilute acid and if amount of water is less, it is called concentrate acid.
  • Based on the strength acids can be strong (which cause severe burns) e.g.: nitric acid and sulphuric acid and weak. (are not destructive) organic acids are weak acid.
  • Acids turn blue litmus paper red, methyl orange into pink and phenophthalin(deep pink) in to colourless dye.
  • Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    large 2NO_2 reacts with water to give _________________

    Right Option : D
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    Explanation
    Question : 2

    The taste of an acid is ___________________

    Right Option : B
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    Explanation
    Question : 3

    A solution is highly acidic in nature and a small quantity of a very weak basic solution is added to in. What is the chemical nature of the resulting solution?

    Right Option : B
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    Explanation
     
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