GATE CY 2019 Question Paper (02-Feb-2019) (Shift 1)

The experimentally observed magnetic moment values, which match well with the spin-only values for the pair of aqueous ions is

(Atomic number: Cr = 24, Co = 27, Gd = 64, Tb = 65, Dy = 66 and Lu = 71)

Among the following compounds, a normal spinel is

Following are the examples of silicate minerals

I - Zircon, ZrSiO4

II - Beryl, Be₃Al₂Si₆O₁₈

III - Pyrophyllite, Al₂(OH)₂[(Si₂O₅)₂]

The correct structural description of the minerals is

In the EPR spectrum of a methyl radical, the number of lines and their relative intensities, respectively, are

The product obtained in the reaction of Mn₂(CO)₁₀ with Br₂ is