question_answer

What is the correct relationship between the pHs of isomolar solutions of sodium oxide\[(p{{H}_{1}}),\]sodium sulphide\[(p{{H}_{2}}),\]sodium selenide\[(p{{H}_{3}})\] and sodium telluride\[(p{{H}_{4}})\]?

A)  \[p{{H}_{1}}>p{{H}_{2}}=p{{H}_{3}}=p{{H}_{4}}\]

B)     \[p{{H}_{1}}<p{{H}_{2}}<p{{H}_{3}}<p{{H}_{4}}\]

C)     \[p{{H}_{1}}<p{{H}_{2}}>p{{H}_{3}}<p{{H}_{4}}\]

D)     \[p{{H}_{1}}>p{{H}_{2}}>p{{H}_{3}}>p{{H}_{4}}\]