Question

Which of the following are octa-atomic and tetra-atomic interhalogens respectively?

• A. $Cl{F}_3$ and $I{F}_7$
• B. $I{F}_7$ and $Cl{F}_3$
• C. Both (A) and (B)
• D. None

Answer 1

The correct option is B $I{F}_7$ and $Cl{F}_3$

Interhalogen compounds contains two or more different halogen atoms and no atoms of elements from any other group. Now the total number of halogen should be 8 and 4 respectively. Thus we see that the compounds $I{F}_7$ and $Cl{F}_3$ octa-atomic and tetra-atomic interhalogens.