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Question

Which of the following statements are true about sodium chloride?
  1. It is a colourless salt.
  2. It is formed from a neutralisation reaction.
  3. It is used in the preparation of sodium carbonate.
  4. It has pH value 6.


Solution

The correct options are
A It is a colourless salt.
B It is formed from a neutralisation reaction.
C It is used in the preparation of sodium carbonate.
Sodium chloride is a colourless simple salt. It is formed from the neutralisaton reaction between sodium hydroxide (NaOH) and hydrochloric acid (HCl). Its pH value is seven since it is formed from the neutralisation reaction between a strong acid and a strong base. It is used in the preparation of sodium carbonate and sodium hydrogen carbonate.

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