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प्रश्न
Write two uses of neon.
List the uses of neon gas.
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उत्तर
- In neon discharge lamps and signs. These signs are visible from long distances and in mist or fog.
- A mixture of neon and helium is used in certain protective electrical devices, such as voltage stabilizers and current rectifiers.
- Neon is largely used for producing neon lights. Glass tubes filled with neon or a gas combination at low pressure (about 2 mm) light when exposed to an electric discharge. Neon lights are not only attractive to the eye but also effective in penetrating mist and fog. To create different hues of neon lights, adjust the gaseous mixture composition and colour of the tube.
- Neon is also used in television sets, spark plug testers, warning signals, etc.
Notes
Students should refer to the answer according to their questions.
संबंधित प्रश्न
Account for the following:
Helium is used in diving apparatus.
Draw the structures of the following molecules: XeF2
What happens when: XeF4 reacts with SbF5?
Which noble gas is used in filling balloons for meteorological observations?
Complete the equation : XeF2+PF5 →
Write the structures of the following molecule:
XeOF4
Draw the structure of the following:
XeO3
test q 1234
Balance the following equation:
\[\ce{XeF6 + H2O -> XeO2F2 + HF}\]
Why has it been difficult to study the chemistry of radon?
How are xenon fluorides XeF2, XeF4 and XeF6 obtained?
Which one of the following does not exist?
Give the formula and describe the structure of a noble gas species which is isostructural with:
\[\ce{ICI^-_4}\]
Give the formula and describe the structure of a noble gas species which is isostructural with:
\[\ce{IBr^-_2}\]
Answer the following.
List the uses of Neon and argon gases.
Write electronic configuration and two uses of neon. (Z = 10)
Complete the given chemical equations:
`2XeF_2 + 2H_2O->`
Complete the following reactions : XeF6 + 3H2O →
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 the structure of XeF4.
Sulfur dioxide reacts with sodium hydroxide solution to form _______.
Draw structure and name the shape of bromine trifluoride.
Which of the following fluorides does not exist?
Partial hydrolysis of XeF4 gives ____________.
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?
\[\ce{XeF6 + H2O ->[Partial][Hydrolysis] \underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}}\]
\[\ce{XeF4 + H2O - \underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}}\]
Discuss the trends in electronegativity and atomic radii for elements of group 16 17, 18.
The element expected to form the largest ion to achieve the nearest noble gas configuration is:
