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प्रश्न
Answer the following.
List the uses of Neon and argon gases.
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उत्तर १
Uses of neon gas:
(i) It is mixed with helium to protect electrical equipments from high voltage.
(ii) It is filled in discharge tubes with characteristic colours.
(iii) It is used in beacon lights.
Uses of Argon gas:
(i) Argon along with nitrogen is used in gas-filled electric lamps. This is because Ar is more inert than N.
(ii) It is usually used to provide an inert temperature in a high metallurgical process.
(iii) It is also used in laboratories to handle air-sensitive substances.
उत्तर २
Uses of Neon
Neon is used in discharge tubes and fluorescent bulbs for advertisement display purposes. Glow’of different colours ‘neon signs’ can be produced by mixing neon with other gases. Neon bulbs and used in botanical gardens and in green’ houses.
Uses of Argon
Argon is used mainly to provide an inert atmosphere in high temperature metallurgical processes such as arc welding of metals and alloys. In the laboratory, it is used for handling substance which are air sensitive.
It is used in filling incandescent and fluorescent lamps where its presence retards the sublimation of the filament and thus increases the life of the lamp.It is also used in “neon signs” for obtaining lights of different colours.
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संबंधित प्रश्न
Draw the structure of the following molecule:
XeF4
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Write the structures of the following molecule:
XeOF4
Complete the following equations : XeF4 + O2F2→
Complete the following equation:
\[\ce{XeF2 + H2O ->}\]
Draw the structure of the following:
XeO3
test q 1234
Balance the following equation:
\[\ce{XeF6 + H2O -> XeO2F2 + HF}\]
What inspired N. Bartlett for carrying out reaction between Xe and PtF6?
How are xenon fluorides XeF2, XeF4 and XeF6 obtained?
How are XeO3 and XeOF4 prepared?
Give the formula and describe the structure of a noble gas species which is isostructural with:
\[\ce{ICI^-_4}\]
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\[\ce{IBr^-_2}\]
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Write electronic configuration and two uses of neon. (Z = 10)
Complete the given chemical equations:
`2XeF_2 + 2H_2O->`
Complete the following reactions:
XeF6+2H2O ----->
Draw the structures of the following
XeF6
Write the electronic configuration of the following element:
Krypton (Z = 36)
Fill in the blanks by choosing the appropriate word/words from the brackets
(square pyramidal, electrical, 74; 26, sp3d2, sp3d, chemical, 68, 32, tetrahedral, yellow, white, iodoform, Lucas)
The geometry of XeOF4 molecule is ______ and the hybridisation of Xenon atom in the molecule is ________.
Draw structures of the following:
XeF4
The number of lone pairs of electrons present in ClF5:
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Electron gain enthalpy
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Partial hydrolysis of XeF4 gives ____________.
Helium is preferred to be used in balloons instead of hydrogen because it is ____________.
In which of the following pairs, the two species are isostructural:
Which of the following reactions is an example of redox reaction?
Match the compounds given in Column I with the hybridisation and shape given in Column II and mark the correct option.
| Column I | Column II |
| (A) XeF6 | (1) sp3d3 – distorted octahedral |
| (B) XeO3 | (2) sp3d2 – square planar |
| (C) XeOF4 | (3) sp3 – pyramidal |
| (D) XeF4 | (4) sp3d2 – square pyramidal |
Substance having the lowest boiling point ______.
On partial hydrolysis, XeF6 gives ______.
The atomic radii of Zr and Hf are almost identical. This is because of
The order of increasing sizes of atomic radii among the elements O, S, Se and As is:
Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.
Match List - I with List - II:
| List - I | List - II | ||
| (Species) | (Number of lone pairs of electrons on the central atom) |
||
| (A) | XeF2 | (i) | 0 |
| (B) | XeO2F2 | (ii) | 1 |
| (C) | XeO3F2 | (iii) | 2 |
| (D) | XeF4 | (iv) | 3 |
Choose the most appropriate answer from the options given below:
Which one of the following reactions of xenon compounds is not feasible?
\[\ce{XeF6 + H2O ->[Partial][Hydrolysis] \underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}}\]
\[\ce{XeF4 + H2O - \underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}}\]
Write two uses of neon.
