Two complexes A and B have dissociation constants 1.0 x 10^-12 and 4.7 x 10^-14 respectively. Which complex will be more stable?(a) A(b) B(c) Both are equally stable(d) Cannot be determinedThe question was asked in an interview for internship.This intriguing question originated from Stability of Coordination Compounds in chapter Coordination Compounds of Chemistry – Class 12

Two complexes A and B have dissociation constants 1.0 x 10^-12 and 4.7

1.	Two complexes A and B have dissociation constants 1.0 x 10^-12 and 4.7 x 10^-14 respectively. Which complex will be more stable?(a) A(b) B(c) Both are equally stable(d) Cannot be determinedThe question was asked in an interview for internship.This intriguing question originated from Stability of Coordination Compounds in chapter Coordination Compounds of Chemistry – Class 12
Answer» The CORRECT OPTION is (b) B The EXPLANATION: The smaller the value of dissociation constant, more STABLE the COMPLEX will be in solution. Since 4.7 x 10^-14 < 1.0 x 10^-12, complex B is more stable.

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