Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202013 Oct 2020Morning ShiftChemistryCoordination CompoundsActual

Which element from following forms colourless compounds in +2 oxidation state?

Options

  1. ACo ( Z =27)
  2. BZn ( Z =30)
  3. CCu (Z=29)
  4. DMn ( Z =25)

Correct answer

B. Zn ( Z =30)

Step-by-step solution

Zn (Z=30) Zn ²⁺ 3 ~d ¹⁰ (No unpaired d-electron) Zn forms colourless compounds in +2 oxidation state.

Practice Coordination Compounds on Quantrex Academy →

More from Coordination Compounds

Identify the complex which exhibits all 3 characteristics; paramagnetic; high spin configuration; octahedral geometry 2026Which one of the following complex-isomerism pair matches correctly? 2026Match the Coordination compounds in Column I with the type of stereoisomerism given in Column II exhibited by them. Column I Column II A. [ Pt ( NH ₃)₂ Cl ₂] P. fac-mer B. Ni [( NH 2026The Crystal Field Stabilisation energy of (i) [ CoF ₆]³⁻ and (ii) [ Fe ( H ₂ O )₆]³⁺ are ----- and ------- respectively. 2026Which one of the following octahedral complexes has the highest spin-only magnetic moment? 2026Metal-ligand -bond formation in Mn ₂( CO )₁₀ and [ MnO ₄]^- requires electron-pair donation between metal and ligand orbitals. Which one of the following represents the direction o 2026Which of the following is the most stable complex ion? 2026How many ions per molecule are produced from the complex [ Co(NH ₃ ) ₆] Cl ₂ in solution? 2026 Full Coordination Compounds list All MHT CET PYQs