Question

XeF₆ on reaction with NaF gives ______.

Options

• Na⁺[XeF₇]^-

• [NaF₂]^-[XeF₅]⁺]

• Na⁺[XeF₆]^-

• [NaF₂]⁺[XeF₅]^-

Answer 1

XeF₆ on reaction with NaF gives Na⁺[XeF₇]^-

Explanation:

XeF₆ on reaction with NaF gives Na⁺[XeF₇]^- This is because NaF provides the fluoride ion (F-), which coordinates with XeF₆ to form the heptafluoroxenate [XeF₇]^- anion. The reaction is:

XeF₆ + NaF → Na + [XeF₇]^-

This product is stable due to the expanded coordination number of xenon.