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

Hyperconjugation involves overlap of the following orbitals

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

Most powerful leaving group in following