Which of the Following Is Not True About the Molecular

Multiple Choice

Which of the following is not true about the molecular ion in mass spectrometry?

A) The molecular ion is produced by loss of one electron from the molecule.
B) The mass of the molecular ion is equivalent to the mass of the molecule.
C) The ion is produced by a loss of pair of electrons from the molecule.
D) The molecular ion is often unstable and can undergo fragmentation.
E) none of these