WorksheetsEXAM 2ND QUARTER
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
Which of the following functions determines the shape of orbitals?
a)
radial function`
b)
spherical function
c)
angular function
d)
cylindrical function
2.
How many degenerates orbitals are there in the 5g subshell?
a)
3
b)
5
c)
7
d)
9
3.
Which of the following subshells of hydrogen is equal in energy with 3d?
a)
4d
b)
2p
c)
3s
d)
4f
4.
Which of the following pairs of subshells of many-electron atoms is correctly compared in terms of their energy states?
a)
2p>3s
b)
4s>1s
c)
4d<3p
d)
2s=2p
5.
Zin (Z=30)
a)
diagmanetic
b)
paramagnetic
c)
neomagnetic
d)
both diamagnetic and neomagnetic
6.
Potassium (Z=19)
a)
diagmanetic
b)
paramagnetic
c)
neomagnetic
d)
both diamagnetic and neomagnetic
7.
Einsteinium has the electron configuration [Rn] 7s^2 5f^11. How many unpaired electrons are there in this element?
a)
1
b)
3
c)
5
d)
7
8.
Hassium has the electron configuration [Rn] 7s^2 5f^14 6d^6. How many unpaired electrons are there in this element?
a)
0
b)
2
c)
4
d)
5
9.
Which of the following scientist formulated the octet rule?
a)
Gilbert Newton Lewis
b)
Gilbert Thomson Lewis
c)
Ernest Rutherford
d)
David Rutherford
10.
Which of the following groups obeys the octet rule by donating electrons?
a)
Group 2
b)
Group 16
c)
Group 17
d)
Group 18
11.
What is the formula of the covalent compound consisting of 1 oxygen and 2 fluorine atoms?
a)
OF2
b)
O2F
c)
F2O
d)
FO2
12.
Compound Formula - H2Se. How many valence electrons are there in the molecule?
a)
8
b)
10
c)
12
d)
14
13.
Consider the Lewis structure of dichlorocarbene, CCl2, a molecule in which carbon is electron-deficient. What is the electron-group geometry of the molecule?
a)
octahedral
b)
tetrahedral
c)
trigonal planar
d)
trigonal bipyramidal
14.
Consider the Lewis structure of SeF4. What is the electron-group geometry of the molecule?
a)
octahedral
b)
tetrahedral
c)
trigonal planar
d)
trigonal bipyramidal
15.
This is a vector quantity that pertains to separation of charges between two atoms bonded to each other.
a)
bond length
b)
dipole moment
c)
electronegative
d)
molecular geometry
16.
Determine the property of the compound. SO3
a)
polar
b)
nonpolar
c)
conditional polar
d)
semipolar
17.
Which of the following is a saturated hydrocarbon?
a)
Alkanes
b)
Alkenes
c)
Alkynes
d)
Aromatic
18.
A group of compounds in which two carbons are bonded to the carbonyl carbon is called:
a)
aldehyde
b)
ketone
c)
ester
d)
ether
19.
Which of the following is true about complete combustion of hydrocarbons?
a)
soot is formed
b)
carbons in the molecule are converted to CO2
c)
carbon monoxide is one of the combustion products
d)
hydrocarbons are not converted into smaller molecules
20.
Which of the following is false about the process of soap making from oil and base?
a)
glycerol is one of the products
b)
carboxylate salts are products
c)
the use of sodium hydroxide produces liquid soap
d)
breakdown of TAGs from oils is a substitution raction
21.
This is the substance needed to start chain-growth polymerization?
a)
initiator
b)
terminator
c)
solvent
d)
catalyst
22.
Which of the following types of organic reactions may occur during step-growth polymerization?
a)
elimination
b)
rearrangement
c)
condensation
d)
substitution
23.
Which of the following factors mainly affects the difference in properties of HDPE and LDPE?
a)
pendant groups
b)
branching
c)
tacticity
d)
crosslinking
24.
A polymer that cannot be brought to molten state:
a)
fiber
b)
thermoset
c)
elastomer
d)
thermoplastic
25.
It consists mainly of carbon, hydrogen, oxygen, nitrogen, and sulfur atoms.
a)
carbohydrates
b)
proteins
c)
lipid
d)
nucleic acid
26.
It consists of two polymer chains linked together in an intertwined fashion by hydrogen bonds.
a)
wax
b)
monosaccharide
c)
DNA
d)
hormone
27.
How many amino acids are considered standard?
a)
18
b)
32
c)
20
d)
26
28.
Which of the following is true about essential amino acids?
a)
They can be made by the body.
b)
They are the amino acids not found in any protein.
c)
They must be supplied in the body by eating protein-rich food.
d)
They cannot be processed by the body hence bad to one's health.
29.
This level of structure describes the three-dimensional structure of proteins.
a)
primary
b)
secondary
c)
tertiary
d)
quaternary
30.
This is the process in which secondary, tertiary, and quaternary structures or proteins are disrupted.
a)
degradation
b)
condensation
c)
denaturation
d)
recombination
31.
Which of the following is not an essential monosaccharide?
a)
glucose
b)
fructose
c)
fucose
d)
N-acetylglucosamine
32.
This is an energy-producing process of converting glucose to pyruvate.
a)
hydrolysis
b)
glycolysis
c)
beta oxidation
d)
gluconeogenesis
33.
Which among the following functional groups is distinct among carbohydrates?
a)
carbonyl
b)
carboxyl
c)
alkene
d)
phosphate
34.
It is a five-carbon carbohydrate bearing an aldehyde group.
a)
pentoketose
b)
pentoaldose
c)
heptoketose
d)
heptoaldose
35.
Which of the following lipids is non-saponifiable?
a)
wax
b)
TAG
c)
terpenoid
d)
phospholipid
36.
Which fatty acid is the precursor of eicosanoids?
a)
arachidic acid
b)
lauric acid
c)
arachidonic acid
d)
linoleic acid
37.
Which type of eicosanoid consists of three conjugated double bonds?
a)
leukotriene
b)
thromboxane
c)
prostaglandin
d)
diterpenoid
38.
Which of the following molecules is the precursor of terpenoids?
a)
isopentenyl diphosphate
b)
arachidonic acid
c)
glycerol
d)
sphingosine
39.
Which of the following bases is a purine?
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
40.
Which of the following statements is false about the two DNA strands in a double helix?
a)
They are complementary.
b)
A-T and C-G base pairings are observed.
c)
They interact in a parallel manner.
d)
All statements are false.
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