Question

In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it?

Options

• \[\ce{CO2 < SiO2 < SnO2 < PbO2}\]

  Increasing oxidizing power

• \[\ce{HF < HCl < HBr < HI}\]

  Increasing acidic strength

• \[\ce{H2O < H2S < H2Se < H2Te}\]

  Increasing pKa values

• \[\ce{NH3 < PH3 < AsH3 < SbH3}\]

  Increasing acidic character

Answer 1

\[\ce{H2O < H2S < H2Se < H2Te}\]

Increasing pKa values