GATE CY 2020 Question Paper (01-Feb-2020) (Shift 2)

In the following reaction,



The number of peaks exhibited by the major product P in its broadband proton decoupled ¹³C NMR spectrum is ______

Among the following,





the total number of aromatic species is ______

The maximum number of microstates for d² electronic configuration is ______

In a uranium recovery process, an aqueous solution of uranyl ion is evaporated, dried in air at 400 °C and subsequently reduced with hydrogen at 700 °C to obtain a uranium compound (X). The oxidation state of uranium in X is ______

(Given: atomic number of U is 92)

For a cubic crystal system, the powder X-ray diffraction pattern recorded using Cu Kₐ source (λ = 1.54 Å) shows a peak at 33.60° (2θ) for (111) plane. The lattice parameter ‘a’ (in Å, rounded off to two decimal places) is ______