How many products will be aromatic ion when AgNO3 reacts with the following compounds?

Number of π electrons present in naphthalene is

The maximum number of carbon atoms arranged linearly in the molecule CH3–C≡C– CH=CH2 is -

In the halogenation of methane, which of the following intermediate reaction does not take place

Which of the following molecules, in pure form, is (are) unstable at room temperature ?

Most powerful leaving group in following