InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Asthma patients use a mixture of …..for respirationA. `O_(2)` and `H_(2)`B. `O_(2)` and HeC. `O_(2)` and ArD. `O_(2)` and Ne |
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Answer» Correct Answer - B |
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| 2. |
Which of the following is formed by xenon ?A. `XeF_(7)`B. `XeF_(4)`C. `XeF_(5)`D. `XeF_(3)` |
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Answer» Correct Answer - B |
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| 3. |
In `XeO_(3)` and `XeF_(6)` the oxidation state of `Xe` isA. `sp^(3)d^(2)` to `sp^(3)d`B. `sp^(3)d^(3)` to `sp^(3)`C. `sp^(3)d^(3)` to `sp^(3)d^(2)`D. `sp^(3)d^(3)` to `sp^(3)d` |
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Answer» Correct Answer - C::D |
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| 4. |
Shape of `XeOF_(4)` isA. OctahedralB. Square pyramidalC. PyramidalD. T-Shaped |
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Answer» Correct Answer - B |
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| 5. |
Total number of lone pairs on Xe in `XeF_(2), XeO_(3)F_(2), XeF_(4), XeF_(6)` is t,u,v & w respectively. ThenA. `t +u = 3`B. `v +w = 3`C. `u = 0`D. `w = 1` |
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Answer» Correct Answer - A::B::C::D |
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| 6. |
Which of the following compound cannot be prepared ?A. `XeF_(2)`B. `XeF_(3)`C. `XeF_(4)`D. `XeF_(6)` |
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Answer» Correct Answer - B |
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| 7. |
Hybridization and shape of `XeF_(4)` isA. `sp^(3)d`, trigonal bipyramidalB. `sp^(3)`, tetrahedralC. `sp^(3)d^(2)`, square planarD. `sp^(3)d^(2)`, hexagonal |
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Answer» Correct Answer - C |
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| 8. |
The shape of `XeF_(5)^(+)` Ion isA. PentagonalB. OctahedralC. Square pyramidalD. Trigonal bipyramidal |
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Answer» Correct Answer - C |
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| 9. |
The shape of `XeO_(3)` molecule isA. planar triangleB. pyramidC. linearD. square planar |
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Answer» Correct Answer - B |
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| 10. |
If `N_(2)` gas is dissolved in the blood, it causesA. BlindnessB. HeadacheC. BendsD. All |
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Answer» Correct Answer - C |
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| 11. |
The hybridisation of Xe is `sp^(3)d^(2)` inA. `XeF_(2)`B. `XeO_(4)`C. `XeF_(4)`D. `XeO_(3)` |
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Answer» Correct Answer - C |
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| 12. |
The element is used in locating defect in steel casting isA. HeB. KrC. XeD. Rn |
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Answer» Correct Answer - D |
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| 13. |
Which of the following fluorides of Xe has zero dipole moment ?A. `XeF_(2)`B. `XeF_(6)`C. `XeF_(4)`D. Both (1) & (3) |
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Answer» Correct Answer - D |
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| 14. |
`XeF_(2)` molecule isA. Trigonal planarB. Square planarC. LinearD. Pyramidal |
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Answer» Correct Answer - C |
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| 15. |
The shape of `XeF_(4)` molecule isA. TetrahedronB. Square planarC. Square pyramidalD. Trigonal bipyramid |
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Answer» Correct Answer - B |
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| 16. |
`XeF_(4)` is a square planar molecule. The hybridisation of xenon atom in this molecule isA. `dsp^(2)`B. `sp^(3)d`C. `sp^(3)d^(2)`D. `d^(2)sp^(3)` |
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Answer» Correct Answer - C |
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| 17. |
The number of lone pairs of electrons on xenon atom in `XeF_(4)` molecule isA. 4B. 3C. 2D. zero |
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Answer» Correct Answer - C |
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| 18. |
Among noble gases, Xe is quite reactive and form a number of fluorides and oxyfluorides. In these compounds the electrons, from 5p orbitals are excited to 5d orbitals. The predicted shapes of xenon fluorides are linear, square planar and distorted octahedron. The shapes of xeon oxyfluorides can be prodicted by VSEPR theory.A. tetrahedralB. Square pyramidC. square planarD. octahedral |
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Answer» Correct Answer - C |
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| 19. |
Among noble gases, Xe is quite reactive and form a number of fluorides and oxyfluorides. In these compounds the electrons, from 5p orbitals are excited to 5d orbitals. The predicted shapes of xenon fluorides are linear, square planar and distorted octahedron. The shapes of xeon oxyfluorides can be prodicted by VSEPR theory.A. linear `XeF_(2)` and pyramidal `XeO_(3)`B. bent `XeF_(2)` and pyramidal `XeO_(3)`C. bent `XeF_(2)` and pyramidal `XeO_(3)`D. linear `XeF_(2)` and tetraheddral `XeO_(3)` |
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Answer» Correct Answer - A |
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| 20. |
Among noble gases, Xe is quite reactive and form a number of fluorides and oxyfluorides. In these compounds the electrons, from 5p orbitals are excited to 5d orbitals. The predicted shapes of xenon fluorides are linear, square planar and distorted octahedron. The shapes of xeon oxyfluorides can be prodicted by VSEPR theory. `XeF_(2)` on alkaline hydrolysis yieldsA. `XeOF_(2)`B. `XeO_(2)`C. `XeO_(2)F_(2)`D. Xe |
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Answer» Correct Answer - D |
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| 21. |
The bond angle in `XeF_(2)` molecule isA. `120^(@)`B. `109^(@)`C. `180^(@)`D. `90^(@)` |
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Answer» Correct Answer - C |
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| 22. |
Among noble gases, only xenon reacts with flourine to form stable xenon fluorides, because xenonA. has highest ionisation enthalpyB. has lowest ionisation enthalpyC. has highest heat of vapourisationD. is the most readily available noble gas |
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Answer» Correct Answer - B |
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| 23. |
The density is very high forA. NeB. ArC. HeD. Xe |
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Answer» Correct Answer - D |
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| 24. |
Boiling point is very high forA. HeB. NeC. KrD. Xe |
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Answer» Correct Answer - D |
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| 25. |
The heat of vapourisation is very high forA. HeB. NeC. ArD. Xe |
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Answer» Correct Answer - D |
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| 26. |
Amomng noble gases, only xenon can form more number of compounds. This is due to ti itsA. High I.PB. Low I.PC. Small sizeD. less than zero electron affinity |
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Answer» Correct Answer - B |
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| 27. |
Which one of the following reaction of xenon compounds is not Feasible?A. `XeO_(3)+HF rarr XeF_(6)+H_(2)O`B. `XeF_(4)+H_(2)O rarr Xe+XeO_(3)+HF+O_(2)`C. `XeF_(2)+H_(2)O rarr Xe+HF+O_(2)`D. `XeF_(6)+RbF rarr Rb^(+)[XeF_(7)]^(-)` |
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Answer» Correct Answer - A |
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| 28. |
Which of the following exhibits the weakest intermolecular forces?A. `H_(2)O`B. `NH_(3)`C. HeD. HCl |
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Answer» Correct Answer - C |
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| 29. |
Which of the following noble gas is the most polarized ?A. RadonB. KryptonC. XenonD. Helium |
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Answer» Correct Answer - C |
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| 30. |
Which one of the following noble gases is not found in atmoshphere?A. RnB. KrC. NeD. Ar |
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Answer» Correct Answer - A |
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| 31. |
Which one of the following configuration represents Ar. ?A. `1s^(2)2s^(2)2p^(6)3s^(2)`B. `1s^(2)2s^(2)2p^(6)3s^(2)3p^(5)`C. `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)`D. `1s^(2)2s^(2)2p^(6)3s^(2)3p^(2)` |
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Answer» Correct Answer - C |
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| 32. |
`1s^(2)2s^(2)2p^(6)` is the electron configuration ofA. NitrogenB. BoronC. ArgonD. Neon |
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Answer» Correct Answer - D |
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| 33. |
The electronic configuration of neon isA. `1s^(2)2s^(2)2p^(6)`B. `1s^(2)`C. `2s^(2)`D. `1s^(2)2s^(2)2p^(2)` |
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Answer» Correct Answer - A |
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| 34. |
Which of the following inert gas is available only as a product in the radioactive disintegrations ?A. HeB. ArC. RnD. Kr |
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Answer» Correct Answer - D |
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| 35. |
The inert gas predicted from the solar spectrum isA. NeB. KrC. XeD. He |
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Answer» Correct Answer - D |
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| 36. |
The most abundant of helium isA. Spring watersB. Natural gasC. CleviteD. Sun |
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Answer» Correct Answer - B |
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| 37. |
The most abundant noble gas in the atmosphere isA. ArgonB. NeonC. HeliumD. Krypton |
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Answer» Correct Answer - B |
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| 38. |
The valence shell configuration of noble gases (except He) isA. `ns^(2)np^(4)`B. `ns^(2)np^(1)`C. `ns^(2)np^(6)`D. `ns^(2)np^(6)nd^(10)` |
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Answer» Correct Answer - C |
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| 39. |
`XeO_(3)` hasA. Three double bonded O-atomsB. Trigonal pyramidal geometryC. One lone pair and `sp^(3)` hybridisationD. All of these |
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Answer» Correct Answer - D |
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| 40. |
Which statement about noble gases is not correct ?A. Xe forms `XeF_(6)`B. Ar is used in electric bulbsC. Kr is obtained during radioactive disintegration.D. He has the lowest b.pt among all the noble gases |
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Answer» Correct Answer - C |
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| 41. |
When a radioactive substance is kept in a vessel, the atmosphere around it is rich withA. NeB. ArC. XeD. He |
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Answer» Correct Answer - D |
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| 42. |
1/125th part of nitrogen gas isolated from atmosphere did not combine with any other substance due toA. The chemical inert ness of `N_(2)` gasB. The presence of ArgonC. The presence of Argon & other noble gasesD. The presence of `O_(2)`. |
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Answer» Correct Answer - C |
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| 43. |
The noble gases have closed-shell electronic cordigaration and are monatomic gases under normal condition .The low bolling points of the ligher noble gases aree due to the weak dispersion points of the ligher noble gases an due to the weak dispersion forces between the atoms and the alsence of other interalumic interactions. The direct reaction of xenon with flarine loads to a series of compounds with water oxidation number `+2, - 4 and +6, XeF_(4)` reactsviolenatly with water to give `XeO_(2)` .The compound of deduced axbibt nci strouchemistry and their goometries can be deduced considering the total number of electron puirs in the valence shell. Argon is used in arc welding because of itsA. low reactivity with metalB. ability to lower the melting point of metalC. flammabilityD. high calorific value |
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Answer» Correct Answer - A |
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| 44. |
Which of the following gas is/are called inert gas ?A. HeB. NeC. KrD. All of these |
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Answer» Correct Answer - D |
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| 45. |
Which is the lightest gas ?A. HeliumB. OxygenC. HydrogenD. Nitrogen |
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Answer» Correct Answer - C |
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| 46. |
The gas used in gas thermometer isA. HeB. `O_(2)`C. XeD. Ne |
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Answer» Correct Answer - A |
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| 47. |
Which statement is false ?A. 118th element is a noble gas called ununoctiumB. Helium is light noble gasC. Xenon is the most reactive among the rare gases.D. Noble gases Ne, Kr and Xe were discovered by Ramsay and Rayleigh. |
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Answer» Correct Answer - D |
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| 48. |
The noble gas which can from more number of compounds isA. NeB. HeC. XeD. Ar |
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Answer» Correct Answer - C |
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| 49. |
Which of the following is non-existing ?A. `H_(2)`B. `O_(2)`C. `N_(2)`D. `He_(2)` |
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Answer» Correct Answer - D |
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| 50. |
The lightest noble gas atom contains the following particles in its nucleusA. 4 protonsB. 3 neutronsC. 3 protons and 1 neutronD. 2 protons and 2 neutrons |
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Answer» Correct Answer - D |
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