GATE CY 2016 Question Paper (31-Jan-2016) (Shift 2)

The experimental ionization energies of hydrogen and helium atoms in their ground states are, respectively, 13.6 eV and 24.6 eV. The ground state energy of helium atom, in eV, is

Ring flipping of the compound in the following conformation leads to

The total number of lines expected (due to spin-spin coupling of proton with fluorine and deuterium nuclei) in the ${}^{1}H$ NMR spectrum of the following compound is ________

The compound in 'R' configuration is

The most suitable reagent for performing the following transformation, is