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NTA Abhyas JEE Main2020ChemistryIonic EquilibriumPractice

Match List I with List II and select the correct answer using codes given below the lists. List I List II ( p ) Potassium sulphate 1 . Acidic ( q ) Sodium acetate 2 . Neutral ( r ) Ammonium chloride 3 . Alkaline ( s ) Calcium formate 4 . Cannot be predicted

Options

  1. A( p ) - 1 , ( q ) - 2 , ( r ) - 3 , ( s ) - 4
  2. B( p ) - 2 , ( q ) - 1 , ( r ) - 3 , ( s ) - 4
  3. C( p ) - 3 , ( q ) - 4 , ( r ) - 2 , ( s ) - 1
  4. D( p ) - 2 , ( q ) - 3 , ( r ) - 1 , ( s ) - 4

Correct answer

D. ( p ) - 2 , ( q ) - 3 , ( r ) - 1 , ( s ) - 4

Step-by-step solution

( p ) Neither K + nor S O 4 2 - ions undergo hydrolysis. So it is neutral. ( q ) Sodium ions are not hydrolyzed, but acetate ions hydrolyze to form strong base, O H - C H 3 C O O - + H 2 O → C H 3 C O O H weakacid + O H - strongbase ( r ) C l - ions are not hydrolyzed. N H 4 + hydrolyse to form strong acid, H 3 O + . N H 4 + + H 2 O → N H 3 weakbase + H 3 O + strongacid ( s ) C a 2 + and H C O O - ions are hydrolyzed to form an acid and a base, but the pH cannot be predicted without the knowledge of hydrolysis cons

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