Question

when 262 g of xenon (atomic mass = 131) receted completely with 152 g fluride (atomic mass = 19) ,a mixture of Xe `F_(2) ` and `XeF_(6) ` was produced , the molar `Xef_(2) : XeF_(6)` is
A. `1:2`
B. `1:4`
C. `1:1`
D. `1:3`

Answer 1

Correct Answer - C
`{:(2Xe ,+,4F_(2) , to , XeF_(2) ,+ ,XeF_(6) ),(2,,8,,0,,0):}`
`therefore` moles ofXe `F_(2)` formed =0.5
moles of `Xef_(6) ` formed = 0.5
`therefore ` moles ratio =1:1