Teaching NVS PGT 2024 Test Series General Science Chemistry Periodic Table

The correct increasing order of pH of isomolar solutions of K₂O (pH₁), K₂S(pH₂), K₂Se(pH₃),and K₂Te(pH₄): is

1

pH₁ > pH₂ > pH₃ > pH₄

2

pH₁ = pH₂ > pH₃ > pH₄

3

pH₃ < pH₁ < pH₂ < pH₄

4

pH₄ < pH₃ < pH₂ < pH₁

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