In which of the following compounds the lone pair is not delocalised over the benzene ring ?

In which of following compounds lone pair of oxygen is delocalized?

Which of the following has not a lone pair ?

In which of the following compounds is there the least delocalization of the lone pair of electrons on the nitrogen atom?

In which of the following compounds is there the least delocalization of the lone pair of electrons on the nirtogen atom?

In which of the following cases lone-pair is involved in resonance :

In which of the following cases lone-pair is involved in resonance :

Which of the following does not have a lone pair of electrons

Which of the following molecules show lone pair of electrons?

In which of the following compounds, extent of resonance between the benzene ring and halogen atom is maximum-