The overall stability constant of the complex ion $[\mathrm{Cu(NH_3)_4}]^{2+}$ is $2.1 \times 10^{13}$. The overall dissociation constant is $y \times 10^{-14}$. Then $y$ is __________. (Nearest integer)

JEE Main 2021 · ChemistryNumerical answerNumerical valueMediumRecall

JEE Main 26 August 2021, Shift 2, Chemistry Q58

Question 58 of 90 in this shift, Chemistry question 28 of 30, Section B.

The overall stability constant of the complex ion

[\mathrm{Cu(NH_3)_4}]^{2+}

2.1 \times 10^{13}

. The overall dissociation constant is

y \times 10^{-14}

. Then

y

is __________. (Nearest integer)

Official answer

NTA final key.