Font size
WorksheetsBonding
Total questions: 10
Worksheet time: 5mins
H-S-H Bond angle in hydrogen sulfide is greater than H-O-H
TRUE
FALSE
F-N-F angle in NF3 and H-N-H angle in NH3 are
109.5 deg and 120 deg. respectively
100 deg and 97 deg. respectively
102 deg. and 107 deg. respectively
107 and 100 deg. respectively
The number of lone pairs in BrF3 is
3
2
5
1
The electron diffraction study of XeF6 showed the molecular geometry to be
trigonal prism
face capped trigonal bipyramid
octahedron
edge capped square pyramid
The molecules that are likely to be fluxional are
SF4
CO2
PF5
BF3
The structure of [I3]-
almost linear
bent 90
trigonal planar
none of the above
The H-A-H angle in PH3 is less than NH3 because ..
H is smaller than P and N
H is more electronegative than P and less electronegative than N
P is less electronegative than H and N
N is more electronegative than P and less electronegative than H
Stoichiometry of element hydrides can be explained
if promotion of electrons from S to P orbitals requires less energy than the bond energy gained.
if the maximum number of electrons that can be held on the valence shell of the first row elements is 8
if valency is made equal tot he unpaired electrons available on the element in the ground state
if the number of electrons in the outermost orbit is the valency of the element.
The ideal bond distance in a molecule AB is best explained by.
Only considering the repulsion between nuclei
considering the electrostatic repulsion between electrons on A with the nuclei of B and vice versa
Optimising the repulsion and attraction between components of A and B
considering the electrostatic attraction between electrons on A and the electrons of B
Equatorial bond lengths in main group metal hydrides are usually
longer than axial bond lengths
shorter than axial bond lengths
