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18 Group Elements

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Published in: Chemistry
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PPTs of 18 Group Elements

Sachin S / Pune

14 years of teaching experience

Qualification: M.Sc (Pune University - 2008), B.Sc (Yashwant College - 2006)

Teaches: Chemistry, AIEEE, BITSAT, CET, IIT JEE Advanced, IIT JEE Mains, AIPMT, Medical Entrance Exams, NEET

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  1. GROUP 18 ELEMENTS
  2. 18th GROUP ELEMENTS XENON-OXIDES
  3. 18th GROUP ELEMENTS 'XENON-OXIDES forms two oxides. xe03 xe04
  4. 18th GROUP ELEMENTS It is prepared by the complete hydrolysis of xenon hexa-fluoride. xeF6 +3H20 xe03 + 6HF It is unstable, decomposes to form Xe and 02 Xe03 is a colourless and hygroscopic substance with explosive nature.
  5. 18th GROUP ELEMENTS Xe undergoes sp3 hybridization in the third excited state. Xe03 is pyramidal with bond angle 1030 repulsion between Xe03 has 30 and 3dTt - bonds and a lone pair of electrons.
  6. 18th GROUP ELEMENTS Xeo Structure :
  7. 18th GROUP ELEMENTS Xenon compound Xe03 Oxidation state of Xe Hybridization No. of o bonds No. of Tt bonds Total no.of bond pairs of Xe No.of lone pairs on Xe Shape +6 3 sp 3 3 6 1 Pyramidal
  8. 18th GROUP ELEMENTS 1) Which of the following compounds is both hygroscopic and explosive? a) xeF2 b) xe04 exe03 d) xeF6
  9. 18th GROUP ELEMENTS 2) The bond angle in Xe03 molecule decreases from1090281 to 1030 a) Greater repulsions among lone pair reater repulsions among l.p to b.p c) Greater repulsions among bond pairs d) Steric effects
  10. 18th GROUP ELEMENTS 3) The ratio of and Tt bonds present in Xe03 molecule is...
  11. 18th GROUP ELEMENTS 4) The number of lone pairs and bond pairs present on Xe of Xe03 molecule is...
  12. 18th GROUP ELEMENTS XENON-TETRA OXIDE
  13. 18th GROUP ELEMENTS It is prepared by the reaction of concentrated sulphuric acid with barium perxenate. Ba2Xe06 + 2H2S04 2BaS04+ Xe04+2H20. It is explosive. It is unstable and decomposes to give Xe and 02 xe04 xe +202
  14. 18th GROUP ELEMENTS Xe undergoes sp3 hybridization in the fourth excited state. Xe04 is tetrahedral with bond angle 109.50 Xe04 has 40 and 4dfl - bonds.
  15. 18th GROUP ELEMENTS Xeo Structure :
  16. 18th GROUP ELEMENTS Xenon compound Xe04 Oxidation state of Xe Hybridization No. of o bonds No. of It bonds Total no.of bond pairs of Xe No.of lone pairs of Xe Shape +8 3 sp 4 4 8 Tetrahedral
  17. 18th GROUP ELEMENTS 1) The explosive compounds are... xe04 b) xe03, xeF6 c) xe04, xeF6 d) xe03, xeF6 , xe04
  18. 18th GROUP ELEMENTS 2) Xe04 molecule is having... a) Three dit - pit bonds VFour dit - pit bonds C) Two dit - pit bonds d) one dit - pit bonds
  19. 18th GROUP ELEMENTS 3) The oxidation state of Xe in Xe04 and bond angle in it are... 1090281 1030 1030 +8, 1090281
  20. 18th GROUP ELEMENTS 4) Xe04 on decomposes to give... vxe, 202 b) xe02, 02 c) xe03, 02 d) xeo, 02
  21. 18th GROUP ELEMENTS XENON OXY-FLUORIDES
  22. 18th GROUP ELEMENTS enon ox -fluorides Xenon forms number of oxy-fluorides. They are.. Xenon oxydifluoride (XeOF2) Xenon oxytetrafluoride (XeOF4) Xenon dioxydifluoride (Xe02F2) Xenon trioxydifluoride (Xe03F2) Xenon oxyhexafluoride (XeOF6)
  23. 18th GROUP ELEMENTS Some of oxy-flourides are obtained by the partial hydrolysis of XeF4 and xeF6 . xeF4 xeF6 xeF6 + H 20 + H 20 XeOF2 + 2HF Xeon + 2HF Xe02F2+ 4HF
  24. 18th GROUP ELEMENTS enon ox -fluorides Structure XeOF2 Xe sp3d hybridisation & ' T shape
  25. 18th GROUP ELEMENTS Structure XeOF4 Xe sp3d2 & square pyramidal
  26. 18th GROUP ELEMENTS o sp3d & see-saw Xenon dioxy difluoride
  27. 18th GROUP ELEMENTS enon ox -fluorides Structure Xe03F2 Xe sp3d Trigonal bi Pyramidal
  28. 18th GROUP ELEMENTS 1) The oxidation state of 'Xe' in XeOF2 molecule is... +4
  29. 18th GROUP ELEMENTS 2) The number of o and It bonds present in XeOF4 molecule are... 1
  30. 18th GROUP ELEMENTS 3) The hybridization of 'Xe' in XeOF6 is... a) sp3 b) sp3d c) sp3d2
  31. 18th GROUP ELEMENTS 4) The shape of XeOF4 is... a) Pyramidal b) Tetrahedral quare pyramidal d) Square planar
  32. 18th GROUP ELEMENTS Thank you...

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