Compare the first acid-dissociation constants ( ) of and

CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases

Problem

Compare the first acid-dissociation constants (

K_{\mathrm{a1}}

) of

\mathrm{H_2SO_4}

and

\mathrm{H_2SeO_4}

. Which acid has the larger

K_{\mathrm{a1}}

, and what structural feature accounts for this difference?