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Question

You have hydrochloric acid in a beaker. Which one of the following will you use to perform the experiment of neutralisation?


  1. HNO3  (Nitric acid)

  2. H2SO4 (Sulphuric acid)

  3. Pure H2O (Water)

  4. NaOH (Sodium hydroxide)


Solution

The correct option is D

NaOH (Sodium hydroxide)


An acid reacts with a base to neutralize its effect. Hydrochloric acid will react with a base to form salt and water respectively. Here, sodium hydroxide is a base. So HCl will react with NaOH to form sodium chloride salt and water. The reaction will occur as follows:

HCl+NaOHNaCl+H2O 

Two acids do not react to neutralize each other, so HCl will not react with H2SO4 and HNO3Pure water being neutral will not neutralise HCl.

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