Metals React With Acids


 
 
Concept Explanation
 

Metals React With Acids

Reaction of metal with acid: 

Metals usually react with acid to displace hydrogen from the acid and form salts.The less reactive metals, however, do not displace hydrogen from acids.The reaction of acid with the metals depend not only on the reactivity of the metal  but as well as depends on nature of acid. For eg:

Reaction of aluminum with strong acid like HCl and weak acid like acetic acid :

2Al+6HClrightarrow 2AlCl_3+3H_2(rapid)

2Al+6CH_3COOHrightarrow 2Al(CH_3COO)_3+3H_2(slow)

Based on the reactivity of metal :

  • Sodium reacts with dilute hydrochloric acid vigorously due to its higher reactivity to form sodium chloride and hydrogen gas.
  • 2Na+2HClrightarrow 2NaCl+H_2

  • Magnesium  reacts with dilute hydrochloric acid quite rapidly, but much less vigorously than does sodium, to form  magnesium chloride and hydrogen.
  • Mg+2HClrightarrow 2MgCl_2+H_2

    .... (More Text Available, Login?)
    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    When a metal reacts with an acid, a salt and ___________________ are produced.

    Right Option : B
    View Explanation
    Explanation
    Question : 2

    Which of the following are correct :

    (a) Copper does not react with acid which shows that it is less reactive than zinc.

    (b) Zinc reacts with sulphuric acid to form zinc sulphate and hydrogen gas.

    (c) With hot concentrated H2SO4  copper produce copper sulphate, sulphur dioxide and water.

    Right Option : D
    View Explanation
    Explanation
    Question : 3

    Which gas produced by piece of burning charcoal in inefficient oxygen ?

    Right Option : B
    View Explanation
    Explanation
     
     


    Students / Parents Reviews [10]