Oxidation States & Ionisation Energies: JEE Questions & Solutions

Given below are two statements: Statement I: The first ionization enthalpy of Cr is lower than that of Mn. Statement II: The second and…

Niobium (Nb) and ruthenium (Ru) have "x" and "y" number of electrons in their respective 4d orbitals. The value of x + y is:

Which of the following ions is the strongest oxidizing agent? (Atomic Number of Ce = 58, Eu = 63, Tb = 65, Lu = 71)

The spin-only magnetic moment () value (B.M.) of the compound with the strongest oxidising power among Mn2O3, TiO, and VO is B.M. (Nearest…

Given below are two statements: Statement I: CrO3 is a stronger oxidizing agent than MoO3 Statement II: Cr(VI) is more stable than Mo(VI)…

The incorrect relationship in the following pairs in relation to ionisation enthalpies is:

'X' is the number of acidic oxides among VO2, V2O3, CrO3, V2O5 and Mn2O7. The primary valency of cobalt in [Co(H2NCH2CH2NH2)3]2 (SO4)3 is…

Match List-I with List-II: List-I (Species) | List-II (Electronic Distribution) (A) Cr^2+ | (I) 3d^8 (B) Mn^+ | (II) 3d^5 4s^1 (C) Ni^2+ |…

A transition metal 'M' among Sc, Ti, V, Cr, Mn, and Fe has the highest second ionisation enthalpy. The spin-only magnetic moment value of…

The set of correct statements is: (i) Manganese exhibits +7 oxidation state in its oxide. (ii) Ruthenium and Osmium exhibit +8 oxidation in…

The correct order of basicity of oxides of vanadium is:

Highest oxidation state of Mn is exhibited in Mn2 O7. The correct statements about Mn2 O7 are: (A) Mn is tetrahedrally surrounded by oxygen…

In chromyl chloride, the number of d-electrons present on chromium is the same as in: (Given atomic numbers: Ti = 22, V = 23, Cr = 24, Mn =…

In chromyl chloride, the oxidation state of chromium is (+) 2cm.