what-is-the-weakest-acid-from-the-following-why-h2se-ash3-h2tea-ash3-is-the-weak

Question

What is the weakest acid from the following? Why?

H₂Se, AsH₃, H₂Te

Accepted Answer

AsH₃ is the weakest acid because it has the least polar H—X bond.

Answer

H₂Se is the weakest acid because Se has the most polar H—X bond.

Answer

H₂Te is the weakest acid because Te has the largest size.