Question
Give one example each of a salt which gives an aqueous solution having:
  1. $pH$ less than $7$
  2. $pH$ equal to $7$
  3. $pH$ more than $7$

Answer

  1. Ammonium chloride, $NH_4Cl$
  2. Sodium chloride, $NaCl$
  3. Sodium carbonate, $Na_2CO_3$

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