AIPMT PRELIMS2005Chemistry-Acids and Bases
AIPMT PRELIMS 2005 Chemistry pH and Basicity MCQ Question
Type: MCQ-conceptual-Hard-Class 11
What is the correct relationship between the pHs of isomolar solutions of sodium oxide (pH₁), sodium sulphide (pH₂), sodium selenide (pH₃) and sodium telluride (pH₄)?
A
pH₁ > pH₂ ≈ pH₃ > pH₄
B
pH₁ < pH₂ < pH₃ < pH₄
C
pH₁ ≈ pH₂ < pH₃ ≈ pH₄
D
pH₁ > pH₂ > pH₃ > pH₄
Correct Answer
Option D
Detailed Explanation
The basicity decreases down the group, so the pH decreases from sodium oxide to sodium telluride.
Found an issue with this question?
Related Questions
More from 2005
AIDS is caused by HIV that principally infects:
ImmunologyZoology
Assertion : The logic gate NOT can be built using diode. Reason : The output voltage and the input voltage of the diode have 180° phase difference.
ElectronicsPhysics
In a semiconducting material the mobilities of electrons and holes are μₑ and μₕ, respectively. Which of the following is true?
SemiconductorsPhysics