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Worksheetschemical bonding
Total questions: 25
Worksheet time: 18mins
Coordinates bonds are also called ..
ionic bonds
covalent bonds
dative bonds
metallic bonds
Hydronium ion (H3 O+) is an example of
Covalent bond
Coordinate bond
Ionic bond
all three types of Bond
NH3 has how many lone pairs?
0
1
2
3
Ammonium chloirde (NH4 Cl) is an example of
Covalent bond
Coordinate bond
Ionic bond
all three types of chemical Bond
Compounds contain two or more atoms of different elements chemically combined.
Which list contains only ionic compounds?
F2, NaCl
CH4, NaCl
HCl, CO2
NaF, MgCl2
What are the ions present in aluminium oxide?
Al2+ , O-
Al2+ , O2-
Al3+ , O-
Al3+ , O2-
Astatine molecule, At2, shares a total of ...... electrons.
1
2
4
6
What will cause the particles formed in this reaction to bond together?
The attraction of the oppositely charged ions
The hydrogen bonds between the molecules.
The sharing of electrons between atoms.
The polar bonds between the molecules.
Which of the following are not physical properties of covalent compounds?
low melting and boiling points
conducts electricity
insoluble in water
exists mainly as hard solids
Which of the following are physical properties of ionic compounds?
high melting and boiling points
does not dissolve in water
conducts electricity in the solid state
conducts electricity in the liquid state
What is the bond angle of regular tetrahedral geometry?
109.5
104.5
107.5
107.9
what is the shape of water molecule ?
Angular
tetrahedral
Triangular Planar
None
What is the hybridization state of C in acetylene ?
sp2
sp3
sp
sp3d3
VSEPR stands for ?
valence shell electron proton repulsion theory
valency shell electron pair repulsion theory
valence shell electron pair repulsion theory
valence solenoid electron pair repulsion theory
which of the following is the correct Order of repulsion between electron pairs ?
- lone pair-bond pair 2. bond pair-bond pair 3. lone pair-lone pair
1>2>3
2>1>3
3>2>1
3>1>2
what is the number of sigma bond in Benzene molecule ?
8
10
13
12
A pi-bond is formed by
side wise overlapping of hybridized p- orbital
head on overlapping of unhybridized p-orbital
lateral overlapping of unhybridized p-orbital
head on overlapping of unhybridized p-orbital
How covalent bond is formed ?
by overlapping of molecular orbitals
by overlapping of atoms with equal energy
by overlapping of atomic orbitals
by simple method of exchange of electrons
What is the geometry of CH4 molecule ?
Tetrahedral
Linear
Triangular Planar
Angular
What is the overlapping type in HF molecule ?
s-s type
s-p type
p-p type
none
What is the bond angle and hybridization state in NH3 ?
107.5o and triangular planar
104.5o and tetrahedral
107.5o and tetrahedral
109.5o and tetrahedral
What is the number of lone pair and bond angle in H2O molecule ?
2 and 105.4o
1 and 104.5o
3 and 107.5o
2 and 104.5o
What is the hybridization state of C in CO2 molecule with geometry ?
sp and linear geometry
sp2 and triangular planar geometry
sp3 and linear geometry
sp with tetrahedral geometry
Why bond angle in H2O is greater than H2S ?
Due to repulsion between electron pairs
Due to electro-negativity difference between central atom and surrounding atom ?
Due to different hybridization state of central atom in the respective molecule
Due to different extent of overlapping between atomic orbitals
what is % of s-character in sp3 hybrid orbitals ?
33.33 %
25 %
75 %
50 %
