Q.

Aqueous solutions of salts are either acidic, basic or neutral. A few common salts are listed as
I) Silver chloride            
II) Ammonium sulphate         
III) Sodium nitrate         
IV) Sodium phosphate   
V) Sodium acetate
Which of the following correctly matches are given salts with the nature of their aqueous solutions?

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a

Solution with pH  < 7 - I, II, Solution with pH > 7 - IV, V, Solution with pH = 7 - III

b

Solution with pH < 7 - I, Solution with pH > 7 - IV, II, Solution with pH = 7 - III, V

c

Solution with pH  < 7 - I, III, Solution with pH  > 7 - II, IV, Solution with pH = 7 - V

d

Solution with pH < 7 - I, II, Solution with pH > 7 - I, IV, III, Solution with pH = 7 - V

answer is B.

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Detailed Solution

Silver chloride and ammonium sulphate undergo cationic hydrolysis, react with water and produce more  ions in solution. So, resultant solution pH is < 7.
Sodium phosphate and Sodium acetate undergo anionic hydrolysis, react with water and produce more  ions in solution. So, resultant solution pH is > 7. Sodium nitrate is a salt of strong and strong base do not undergo any hydrolysis so resultant solution is neutral and  PH = 7.

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