In which of the following arrangements the sequence is not

Last updated: 7/3/2023

In which of the following arrangements the sequence is not strictly according to the property written against it A B C D CO SiO SnO PbO increasing oxidising power NH3 PH3 AsH3 SbH3 increasing basic strength HF HCI HBr HI increasing acidic strength B C O N increasing first ionisation enthalpy