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प्रश्न
What is a neutralisation reaction? Explain with an example. Give the chemical equation of the reaction which takes place.
What is neutralisation reaction? Explain with the help of an example.
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उत्तर
The reaction between an acid and a base to form salt and water is called a neutralisation reaction.
\[\ce{Acid + Base -> Salt + Water}\]
When hydrochloric acid reacts with a sodium hydroxide solution, a neutralisation reaction forms sodium chloride and water.
\[\ce{\underset{(Base)}{\underset{Sodium hydroxide}{{NaOH}_{(aq)}}} + \underset{(Acid)}{\underset{Hydrochloric acid}{{HCl}_{(aq)}}} -> \underset{(Salt)}{\underset{Sodium chloride}{{NaCl}_{(aq)}}} + \underset{Water}{H2O_{(l)}}}\]
This is an example of a neutralisation reaction. In this reaction, sodium hydroxide and hydrochloric acid neutralise (nullify) each other to form sodium chloride, which is neutral.
संबंधित प्रश्न
Dilute NaOH can be tested with
(a) red litmus paper
(b) blue litmus paper
(c) lime water
(d) Na2CO3
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains ______.
10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount of HCl solution (the same solution as before) required to neutralise it will be:
Write a word equation and then a balanced equation for the reaction taking place when:
Dilute sulphuric acid reacts with zinc granules.
Complete and balance the following chemical equation:
\[\ce{CuO_{(s)} + HCl_{(aq)} ->}\]
Is PbO2 a base or not? Comment.
If you take some distilled water in a test-tube, add an equal amount of acetic acid to it, shake the test-tube well and leave it undisturbed on the test-tube stand, then after about 5 minutes what would you observe?
(A) There is a layer of water over the layer of acetic acid.
(B) A precipitate is setting at the bottom of the test-tube.
(C) Bubbles of colourless gas are coming out of the test-tube.
(D) There is a clear, colourless transparent solutions in the test-tube.
During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to ______
Solutions of acids conduct ______.
______ & ______ metals do not react with HCl or HNO3.
