encircle-the-weaker-base-between-the-two-explain-whyhse-or-hs

Question

Encircle the weaker base between the two. Explain why.

HSe⁻or HS⁻

Accepted Answer

HSe⁻;

Its corresponding acid (H₂Se) has a longer and weaker bond to H, making it a stronger acid and its conjugate base (HSe⁻) a weaker base.

Answer

HS⁻;

Its corresponding acid (H₂S) has a longer and weaker bond to H, making it a stronger acid and its conjugate base (HS⁻) a weaker base.

Answer

Neither of the two;

The two conjugate bases are similar in strength since the central atoms belong to the same group.

Answer

Neither of the two;

The two conjugate bases are similar in strength since the central atoms have very close radii and electronegativities.