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प्रश्न
Explain the trend in the following atomic properties of group 16 elements:
Electron gain enthalpy
उत्तर
Electron gain enthalpy becomes less negative down the group.
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संबंधित प्रश्न
Draw the structures of the following molecules: XeF4
Account for the following:
Helium is used in diving apparatus.
Which noble gas has the lowest boiling point?
Complete the equation : XeF2+PF5 →
Write the structures of the following molecules: XeOF4
Complete the following equation:
XeF2 + H2O →
test q 1234
Why has it been difficult to study the chemistry of radon?
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:
`IBr_2^(-)`
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
Draw structures of the following:
XeF4
Sulfur dioxide reacts with sodium hydroxide solution to form _______.
The number of lone pairs of electrons present in ClF5:
Draw structure and name the shape of bromine trifluoride.
Which of the following fluorides does not exist?
Partial hydrolysis of XeF4 gives ____________.
Helium is preferred to be used in balloons instead of hydrogen because it is ____________.
Which of the following reactions is an example of redox reaction?
Substance having the lowest boiling point ______.
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.
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.
Write two uses of neon.
