Question

Which one of the following statements is not true in respect of properties of interhalogen compounds?

• A. They are all covalent compounds
• B. They are volatile solids or liquids except ClF
• C. $I{F}_5$ has square pyramidal structure
• D. They are all paramagnetic in nature
• E. $Br{F}_3$ is used in the preparation of $U{F}_6$ in the enrichment of ${}^{235}U$

Answer 1

Answer: (D)

Interhalogen compounds are covalent molecules. With the exception of $ClF$ (which is a gas at $298K$ ), all are volatile solids or liquids. They are diamagnetic in nature. The shape of $I{F}_5$ is square pyramidal. These compounds are very useful flourinating agents. e.g., $Cl{F}_3$ and $Br{F}_3$ are used for production of $U{F}_6$ in the enrichment of ${}^{235}U$.