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Worksheetschapter 5 quiz
Total questions: 35
Worksheet time: 43mins
valence electrons are important in chemical bonding there 2 types
(a)
ionic is a..
(a)
covelant is
(a)
–Stable configuration usually has eight electrons;
this is commonly known as the
(a)
which of the following molecules is non polar
co2
N2
CH4
CCI4
all of the above
which of these is correct Lewis dot structure for sulfur?
which of these susbstance is ionic compund
1.NCI3 2.MgF2 3.Al Br3 4.Ch4
1 and 2
2 and 3
2 and 4
3 and 4
which of these molecules will have a trigonal pyramid molecular geometry and be a polar molecule
NH3
H20
C2H2
CH3CI
The element with the highest electronegativity charge
chlorine
neon
flourine
hydrogen
helium
which of these is theories is utilized in the prediction of molecular polarity
Lewis bonding
VSER theory
Dalton theory
which of the following are polar molecules?
I. PCI3 II.H2O III.CO2 IV.BF3
I AND IV
I ,II IV
I AND II
II AND IV
How many bonding pair of electrons are present around the central atom in CO2?
2
3
4
0
how many dots would be drawn around the symbol for phosphorus for its Lewis structure?
3
5
8
6
skip 10
ss
images
fd
ss
which of these molecules will have a tetrahedral electron geometry and a tetrahedral molecular geometry
PCI3
H2O
CCI4
SO2
Which of these elements has the highest electronegativity ?
O
P
Se
N
Ca
how many Ione pairs of electron are present around the central atom in H2O
2
4
1
0
Which of the following is true about water molecules
its nonpolar molecule
it has linear molecules geometry
it has a bent molecular geometry
it has a Ione pair of electrons on the central atom
which of these molecules is polar and has a bent molecular geometry?
H20
C2H2
PC3
CH3cI
Which of the following the correct geometry of CCI4
Trigonal planar
Linear
bent
Tetrahedral
The average of two identical Lewis structure is called
(a)
Covelant bonds are formed when electrons are
(a)
which of the following is true about ozone?
it increase the amount of ultraviolet radition reaching the earth surface
it Lewis structure is best represented by resonance structure
,It cannot be broken down by ultraviolet radition
it contain triple bonds
which of these theories is utilized in the prediction of molecular shapes?
VSEPR Theory
Bohr atomic theory
Lewis theory of bonding
Dalton atomic theory
which of these is the correct Lewis dot structure for chlorine ?
which of these elemets has the lowest electronegativity
N
Nitrogen
P
Ca
Calcium
O
oxgen
which of these is the correct formula for aluminum oxide?
AIO
AI20
AI2O3
AI2O2
number of valence electrons in lead
(a)
Number of valence electrons Neon
(a)
valence electron calcium
(a)
numer of potassium
(a)
a water molecule is ____ and _____
(a)
an ammonia (NH3 )molecule is ___ and ___
(a)
A methene (CH4 ) molecule is _____ and __-
(a)
a hydrogen chloride (HCI) molecule is ____ and ___
(a)
