Asked in PMC Practice Test 26 (2021) 2021Moderate

What is the coordination number of Cu metal in [Cu(NH3)4]SO4?

Correct answer: B. 4

  • A. 3
  • B. 4
  • C. 6
  • D. 1

Explanation

Option B "4"It is the total number of electron pair donated by ligands to the central metal atom or ion . It represents the total number of chemical bonds formed between central metal atom or ion & the donor atoms of ligands.

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About Electronic Structure of d-Block Elements

The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.

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