Xenon - Fluorine Compounds

Question 1

Formation of Xenon Difluoride (XeF2)

Answer 1

Xe(g) (Xe in excess)+ F2(g) —Ni vessel , 673 k , 1 bar ————–> XeF2(s)

Question 2

Hydrolysis of XeF2

Answer 2

2XeF2 + 2 H2O ———> 2Xe + 4HF + O2(g)

Question 3

Reaction of XeF2 with base

Answer 3

2XeF2 + 4NaOH ————-> 2Xe+ 4NaF + 2H2O + o2(g)

Question 4

Reaction of XeF2 with PF5

Answer 4

XeF2 + PF5—————> [XeF]^+[PF6]^-

Question 5

Structure of XeF2

Answer 5

2 bond pair , 3 lone pair
Hybridization - sp3d
Geometry - Trigonal bipyramidal
Shape- linear

( Check the structure in NCERT)

Question 6

Reaction for formation of XeF4

Answer 6

Xe(g) + 2F2 (g) ——-873k , 7 bar———-> XeF4(s)

Question 7

Hydrolysis of XeF4

Answer 7

6XeF4 + 12H2O ————-> 4Xe+24HF+ 3O2 + 2XeO3

At -80 C
XeF4+ H2O ———-> XeOF2 + 2HF

Question 8

Reaction of XeF4 with SbF5

Answer 8

XeF4 + SbF5———-> [XeF3]^+ [SbF6]^-

Question 9

Structure of XeF4

Answer 9

Structure -
4 bond pair 2 lone pair
Hybridization - sp3d2
Geometry - Octahedral
Shape - Square Planar

(Shape of XeF4 in NCERT)

Question 10

Reaction for preparation of XeF6

Answer 10

1st reaction
Xe(g) + 3 F2 (g) (1:20) —-573k, 60 -70 bar——–> XeF6(s)

2nd reaction
XeF4 = O2F2 ———–> XeF6 + O2

Question 11

Structure of XeF6

Answer 11

Structure
6 bond pair 1 lone pair
Hybridization - sp3d3
Geometry - Pentahedral bipyramidal
Shape - Distorted octahedral

Question 12

Reaction of complete and partial hydrolysis of XeF6

Answer 12

Complete Hydrolysis
XeF6 + 3H2O -> XeO3+6HF
Partial hydrolysis
XeF6 + H2O ————> XeOF4 + 2HF
XeF6 =2H2O ———> XeO2F2+ 4HF

Question 13

Reaction of XeF6 with metal fluoride

Answer 13

XeF6 + MF ——-> M^+[Xef7]^-
( M = Na, K , Rb or Cs)

Question 14

Structure of XeO3

Answer 14

XeO3
3 bond pair 1 lone pair
Geometry - Tetrahedral
Shape - Pyramidal
Hybridization - sp3

Question 15

Structure of XeOF2

Answer 15

XeOF2
3 bond pair 2 lone pair
Hybridization - sp3d
Shape - T-shape
Geometry - Trigonal bipyramidal

Question 16

Structure of XeO4

Answer 16

XeO4
4 bond pair
Hybridization - sp3
shape - Tetrahedral

Question 17

Structure of XeOF4

Answer 17

XeOF4
5 bond pair 1 lone pair
Hybridization - sp3d2
Shape - Square pyramidal

Question 18

Xenon cannot form compounds with nitrogen and chlorine. Why?

Answer 18

Xenon cannot form compounds with nitrogen and chlorine because of their low electronegativity

Question 19

What is the bond length order of various xenon fluorides?

Answer 19

Order of bond length of various xenon fluorides
XeF2>XeF4>XeF6