Question

The correct relationship between the pH of isolomar solution of `Na_(2)O(pH_(1)), Na_(2)S(pH_(2)), Na_(2)Se(pH_(3))` and `Na_(2)Te(pH_(4))` is:
A. `pH_(1)gtpH_(2)gtpH_(3)gtpH_(4)`
B. `pH_(1)ltpH_(2)ltpH_(3)ltpH_(4)`
C. `pH_(1)ltpH_(2)ltpH_(3)=pH_(4)`
D. `pH_(1)gtpH_(2)=pH_(3)gtpH_(4)`

Answer 1

Correct Answer - A
`NaOH, NaOH+H_(2)S, NaOH+H_(2)Se` and `NaOH+H_(2)` Te are formed respectively.