Advertisements
Advertisements
प्रश्न
The number of lone pairs of electrons present in ClF5:
उत्तर
The number of lone pairs of electrons present on chlorine in ClF5 is 1.
APPEARS IN
संबंधित प्रश्न
Account for the following:
Helium is used in diving apparatus.
Which noble gas has the lowest boiling point?
Which noble gas is used in filling balloons for meteorological observations?
Complete the equation : XeF2+PF5 →
Write the structures of the following molecules: XeOF4
Complete the following equation:
XeF2 + H2O →
Draw the structures of the following:
XeO3
test q 1234
Balance the following equation: XeF6 + H2O → XeO2F2 + HF
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 XeO3 and XeOF4 prepared?
Which one of the following does not exist?
(i) XeOF4
(ii) NeF2
(iii) XeF2
(iv) XeF6
Give the formula and describe the structure of a noble gas species which is isostructural with
`ICI_4^(-)`
Give the formula and describe the structure of a noble gas species which is isostructural with:
`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+2H2O ----->
Draw the structures of the following
XeF6
Draw structures of the following:
XeF4
Draw the structure of XeF4.
Sulfur dioxide reacts with sodium hydroxide solution to form _______.
Explain the trend in the following atomic properties of group 16 elements:
Electron gain enthalpy
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:
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 ______.
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:
Discuss the trends in electronegativity and atomic radii for elements of group 16 17, 18.
