Home / General Knowledge / Chemistry :: Discussion

Discussion :: Chemistry

  1. Iron rusts quickly in

  2. A.

     Rain water

    B.

     Sea water

    C.

     Distilled water

    D.

     River water

    View Answer

    Workspace

    Answer : Option B

    Explanation :

    Water is the enabler of fast oxidation of iron. So freshwater will also cause rust. However, salt water (sea water) is a very good conductor (lots of dissociated ions) and so there are a number of electrolysis reactions that tremendously accelerate corrosion in salt water. This effect can be reversed by using a metal (like zinc) which causes the current to be reversed and in effect the zinc corrodes rapidly, protecting the iron.


Be The First To Comment