Answered

2 Which of the following is/are properties of aqueous
alkalis?
I They react with acids to form a salt and hydrogen.
II They have a pH less than 7.
III They react with ammonium salts to form a salt,
ammonia and water.
A I and III only
B I and II only
C I, II and III
D III only

Verified Answer :

GinnyAnswer

Final answer:

Aqueous alkalis have specific properties including reacting with acids, having a pH greater than 7, and reacting with ammonium salts to form specific products.


Explanation:

Aqueous alkalis have specific properties:

  1. They react with acids to form a salt and hydrogen, which is exemplified by the equation: NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l).
  2. They have a pH greater than 7, not less than 7.
  3. They react with ammonium salts to form a salt, ammonia, and water, shown by the reaction: NaOH(aq) + NH4Cl(aq) → NaCl(aq) + NH3(aq) + H2O(l).

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