Which energy level does not have p-orbital?

The first energy shell that can have f-orbital is:

Name the noble gas having ns^(2)np^(6) electronic configuration but does not have d-orbitals in its valence shell.

Which of the following does not have stomata?

Which of the following does not have dipole moment ?

Which of the following does not have carboxyl group

A spectral line obtained when an electron jumps from sixth energy level to first energy level in spectrum of hydrogen atom falls in: