Practice Questions

Q52.The number of bridging CO ligand(s) and Co-Co bond(s) in Co2(CO)8, respectively are: (1) 2 and 1 (2) 2 and 0 (3) 0 and 2 (4) 4 and 0

Q52.The compound that inhibits the growth of tumors is: (1) trans - PtCl2NH32 (2) cis - PtCl2NH32 (3) cis - PdCl2NH32 (4) trans - PdCl2NH32

Q52.The highest possible oxidation states of uranium and plutonium, respectively, are (1) 4 and 6 (2) 7 and 6 (3) 6 and 4 (4) 6 and 7

Q52.Which of the following potential energy (P. E. ) diagrams represents the SN1 reaction? (1) (2) (3) (4)

Q52.Three complexes, [CoCl(NH3)5]2+(I), [Co(NH3)5H2O]3+(II) and [Co(NH3)6]3+(III) absorb light in the visible region. The correct order of the wavelength of light absorbed by them is: (1) (II) > (I) > (III) (2) (III) > (II) > (I) (3) (I) > (II) > (III) (4) (III) > (I) > (II)

Q52.Thermal decomposition of a Mn compound (X) at 513 K results in compound Y, MnO2 and a gaseous product. MnO2 reacts with NaCl and concentrated H2SO4 to give a pungent gas Z . X, Y and Z, respectively, are: (1) K3MnO4, K3MnO4 and Cl2 (2) K2MnO4, KMnO4 and Cl2 (3) K2MnO4, KMnO4 and SO2 (4) KMnO4, K2MnO4 and Cl2

Q52.The major product of the following reaction is: (1) (2) (3) (4)

Q52.The complex that has highest crystal field splitting energy (Δ) , is: (1) K3[Co(CN)6] (2) [Co(NH3)5Cl ] Cl2 (3) [Co(NH3)5(H2O)]Cl3 (4) K2[CoCl4]

Q52.The number of water molecules not coordinated to copper ion directly in CuSO4 ⋅5H2O, is (1) 4 (2) 2 (3) 1 (4) 3

Q53.The major product of the following reaction is: (1) (2) (3) (4) JEE Main 2019 (11 Jan Shift 2) JEE Main Previous Year Paper

Q53.The degenerate orbitals of [Cr(H2O)6]3+ are (1) dx2−y2 and dxy . (2) dz2 and dxz . (3) dyz and dz2 . (4) dxz and dyz .

Q53.The major product of the following reaction is: (1) (2) (3) (4)

Q53.The coordination numbers of Co and Al in [Co(Cl)(en)2]Cl and K3[Al(C2O4)3], respectively are: (en = ethane-1, 2-diamine) (1) 3 and 3 (2) 5 and 3 (3) 5 and 6 (4) 6 and 6

Q53.p-Hydroxybenzophenone upon reaction with bromine in carbon tetrachloride gives: (1) (2) (3) (4)

Q53.The total number of isomers for a square planar complex: [MCl(F)(NO2)(SCN)] is: (1) 12 (2) 16 (3) 4 (4) 8

Q53.The major product in the following conversion is JEE Main 2019 (12 Jan Shift 2) JEE Main Previous Year Paper (1) (2) (3) (4)

Q53.The complex ion that will lose its crystal field stabilization energy upon oxidation of metal to +3 state is: (1) Niphen3 2 + (2) Fephen3 2 + (3) Cophen3 2 + (4) Znphen3 2 +

Q53.Increasing rate of SN1 reaction in the following compounds is: (I) (II) (III) (IV) JEE Main 2019 (10 Apr Shift 1) JEE Main Previous Year Paper (1) (I) < (II) < (III) < (IV) (2) (II) < (I) < (III) < (IV) (3) (II) < (I) < (IV) < (III) (4) (I) < (II) < (IV) < (III)

Q53.The calculated spin-only magnetic moments BM of the anionic and cationic species of FeH2O6 +2 and Fe CN6 4 - respectively, are: (1) 0 and 4.9 (2) 2.84 and 5.92 (3) 4.9 and 0 (4) 0 and 5.92

Q53.The incorrect statement is. (1) The spin-only magnetic moments of FeH2O6 2 + (2) The spin-only magnetic moment of and CrH2O6 2 + are nearly similar. NiNH34H2O2 2 + is 2.83 BM . (3) The gemstone, ruby, has Cr3 + ions occupying (4) The color of CoClNH35 2 + is violet as it absorbs the octahedral sites of beryl. the yellow light.

Q53.The following ligand is: (1) tridentate (2) hex dentate (3) bidentate (4) tetradentate

Q53. The major product of the following reaction is: JEE Main 2019 (11 Jan Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)

Q53.The major product of the following reaction is (1) (2) (3) (4)

Q53. Mn2(CO)10 is an organometallic compound due to the presence of: (1) Mn −O bond (2) Mn −Mn bond (3) C −O bond (4) Mn −C bond

Q53.Two complexes CrH2O6 Cl3 A and CrNH36Cl3B are violet and yellow coloured, respectively, The incorrect statement regarding them is: (1) Both are paramagnetic with three unpaired (2) Δ0 value of 𝐴 is less than that of 𝐵 electrons (3) Δ0 values of 𝐴 and 𝐵 are calculated from the (4) Both absorb energies corresponding to their energies violet and yellow light, respectively. complementary colors.