MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryIonic equilibriumPrevious Year Questions

The ionization constant of ammonium hydroxide is 1.77 x  105  at  298  K.  Hydrolysis  constant  of  ammonium chloride is (AIPMT 2009)

A.6.50 x 1012
B.5.65 x 1013
C.5.65 x 1012
D.5.65 x 1010✓ Correct
Explanation

NH4Cl  is  a  salt  of  strong  acid  and  weak  base,  so hydrolysis constant is w h b 5 4 14 w 14 9 h 5 10 h K K K Given,K NH OH 1.77 10 K 10 10 K 0.565 10 1.77 10 or K 5.65 10 x x x x b

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