The first and second ionization constants of a weak dibasic acid H₂A are 8.1×10⁻⁸ and 1.0×10⁻¹³ respectively. 0.1 mol of H₂A was dissolved in 1L of 0.1 M HCl solution. The concentration of HA⁻ⁱn the resultant solution is:

Equilibrium: JEE Main 2026 Chemistry question

JEE Main 2026 · 2 Apr, Evening shift · Q52

JEE Main 20262 Apr, Evening shiftChemistryMediumEquilibrium123× since 2002

The first and second ionization constants of a weak dibasic acid

\mathrm{H_2A}

are

8.1\times10^{-8}

and

1.0\times10^{-13}

respectively. 0.1 mol of

\mathrm{H_2A}

was dissolved in 1L of 0.1 M HCl solution. The concentration of

\mathrm{HA^-}

in the resultant solution is :

JEE Main 2026 Equilibrium Question with Solution (2 Apr Evening shift, Q52) | JEE Arc