In lithium tetrahydroaluminate, the ligand is:
Correct answer: C. H-
- A. Al+
- B. H
- C. H-
- D. None.
Explanation
A ligand is a molecule or ion that binds to a metal atom to form a complex ion. In lithium tetrahydroaluminate, the lithium atom is bonded to four hydride ions (H-). The hydride ions donate their electrons to the lithium atom, forming a stable complex ion. LiH + AlH3 → Li[AlH4]; H- of LiH acts as ligand.
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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