Chapter 15, Problem 56RQ

Periodic Trends in the Strengths of Acids

Choose the stronger acid: $\left(\text{a}\right){\text{H}}_{\text{2}}{\text{S or H}}_{\text{2}}\text{Se,}\left(\text{b}\right){\text{H}}_{\text{2}}\text{Te or HI, }\left(\text{c}\right){\text{ PH}}_{\text{3}}{\text{ or NH}}_{\text{3}}$. Give your reasons.