WorksheetsBonding
Total questions: 16
Worksheet time: 10mins
When an atom loses an electron, it becomes a
positive ion
negative ion
neutral ion
neutral atom
Why do all bonds form?
so the number of protons equals the number of electrons
so an atom can become unstable
to fill the outermost energy level
What is the hybridization of a linear molecule?
sp
sp2
sp3
sp3d
What is the hybridization of this molecule shown above
sp
sp2
sp3
sp4
What is the bond angle for the CH4 molecule?
120°
107°
109.5°
90°
Molecule CO2
undergoes sp2 hybridisation
has 2 σ bond and 2 π bond
undergoes sp3d hybridisation
is trigonal planar molecule
What is the hybridization of the Carbon atom indicated by the arrow?
sp hybridization
sp2 hybridization
sp3 hybridization
dsp3 hybridization
The electrons in a nonpolar covalent molecule are shared...
Evenly
Unevenly
Electrons are not shared
None of the Above
The polarity of a bond is determined by...
The sum of the electronegativities of the two atoms
The difference in the electronegativities of the two atoms
The charges of the atoms
None of the Above
A diatomic molecule like O2 is always _____ because electrons are shared _____
nonpolar; unequally
polar; equally
nonpolar; equally
polar; unequally
For the reaction 2H2(g) + O2(g) → 2H2O(g) the bond enthalpies (in kJ/mol) are
H-H = x, O=O = y, O-H = z
Which calculation will give the value, in kJ/mol, of ΔH for the reaction?
2x + y - 2z
4z - 2x - y
2x + y - 4z
2z - 2x - y
