Question

In complex hydrides, hydride ions act as ligand and are coordinated to metal ions. These hydrides are good reducing agents. Which of the following hydrides is not a complex hydride?

• A. $LiAIH_{4}$
• B. $aBH_{4}$
• C. $(AIH_{3})_{n}$
• D. $LiBH_{4}$

Answer 1

Answer: (C)

$(AIH_{3})_{n}$

Answer 2

$(AlH_{3})$ is a polymeric hydride like $(BeH_{2})_{n},(MgH_{2})n,$ etc.