In complex compounds the oxidation number is written in___________________?
Correct answer: C. Roman numeral
- A. English
- B. Greek
- C. Roman numeral
- D. Hebrew
Explanation
The oxidation state of the central metal in a coordination compound is conventionally shown using Roman numerals, usually in parentheses after the metal name. Students may choose Greek because Greek letters are used in some scientific notation, but they are not used for oxidation numbers in compound names.
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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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