Q. The rate of the following redox reaction is slowest when X is 3+/2+ + 2+ → 2+ + 3+/2+ (A) H2O (B) NH3 (C) Cl– (D) N3– Ans: NH3

Q. In the following reaction sequence, the products P and Q are Ans: Option C

Q. Suppose the wave function of a one dimensional system is y = sin(kx) exp(3ikx) . In an experiment measuring the momentum of the system, one of the expected outcomes is (A) 0 (B) ћk (C) 2 ћk (D) 3 ћk Ans: 2 ћk

Q. Match the metalloproteins with their respective functions. PFerritinIElectron transferQRubredoxinIIAcid-base catalysisRCobalaminIIIMetal storageSCarbonic anhydraseIVMethyl transfer A. P – III; Q – II; R – I; S – IV B. P – III; Q – I; R – IV; S – II C. P – IV; Q – I; R – III; S – II ...

Q. The correct molecular representation of W(Cp)2(CO)2 is (Cp = cyclopentadienyl) (A) (B) (C) (D) Ans:

Q. The product obtained in the reaction of Mn2(CO)10 with Br2 is (A) Mn(CO)5Br (B) Mn2(CO)8Br2 (C) Mn(CO)4Br2 (D) Mn2(CO)9Br Ans: Mn(CO)5Br The process of Bromination or Halogenation of Mn2(CO)10 with the scission of Mn- Mn results in the formation of Manganese pentacarbonyl ...

Q. In the EPR spectrum of a methyl radical, the number of lines and their relative intensities, respectively, are (A) 1 and 1 (B) 3 and 1:2:1 (C) 4 and 1:2:2:1 (D) 4 and 1:3:3:1 Ans: 4 and 1 ∶ 3 ∶ 3 ∶ 1

Q. Following are the examples of silicate minerals Zircon, ZrSiO4            Beryl, Be3Al2Si6O18           Pyrophyllite, Al2(OH)2 ...

Q. Among the following compounds, a normal spinel is (A) MgFe2O4 (B) ZnFe2O4 (C) CoFe2O4 (D) CuFe2O4 Ans: ZnFe2O4 Solution: A spinel compound is made up of eight FCC unit cells with a 2x2x2 oxygen ion configuration. According to the spaces occupied by the cations in the ...

Q. 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) (A) Cr(III) and Gd(III) (B) Co(II) and Gd (III) (C) Cr(III) and Dy(III) (D) ...