A) \[[Co{{(en)}_{2}}S{{O}_{4}}]\]
B) \[[Co{{(en)}_{3}}S{{O}_{4}}]\]
C) \[{{[Co{{(en)}_{3}}]}_{2}}S{{O}_{4}}\]
D) \[{{[Co{{(en)}_{3}}]}_{2}}S{{O}_{4}}{{)}_{3}}\]
Correct Answer: D
Solution :
(i) The central atom, Co is placed first. (ii) The ligands are then placed in alphabetical order. (iii) The formula for the entire coordination entity, whether charged or not, is enclosed in square brackets.
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