Advertisements
Advertisements
Question
Which one of the following does not exist?
Options
XeOF4
NeF2
XeF2
XeF6
Advertisements
Solution
NeF2
Explanation:
NeF2 does not exist. This is because the sum of first and second ionisation enthalpies of Ne are much higher than those of Xe. Consequently, F2 can oxidise Xe to Xe2+ but cannot oxidise Ne to Ne2+.
APPEARS IN
RELATED QUESTIONS
What happens when: XeF4 reacts with SbF5?
Which noble gas has the lowest boiling point?
Which noble gas is used in filling balloons for meteorological observations?
Write the structures of the following molecule:
XeOF4
Complete the following equations : XeF4 + O2F2→
Draw the structure of the following:
XeO3
Why has it been difficult to study the chemistry of radon?
How are xenon fluorides XeF2, XeF4 and XeF6 obtained?
Write electronic configuration and two uses of neon. (Z = 10)
Complete the given chemical equations:
`2XeF_2 + 2H_2O->`
Sulfur dioxide reacts with sodium hydroxide solution to form _______.
Draw structure and name the shape of bromine trifluoride.
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 |
The order of increasing sizes of atomic radii among the elements O, S, Se and As is:
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:
