Quiz 23 Flashcards
- Biological catalyst which expedite reactions by lowering the amount of activation required.
enzymes
positive catalyst
inhibitor
depressants
enzymes
- In the presence of certain chemical reagents, excessive heat, radiation, unfavorable pH, etc., the protein structure may become disorganized. This is called
rearrangement
denaturation
putrefaction
isomerism
denaturation
- Ethylene readily undergoes the following type of reaction
addition
elimination
substitution
rearrangement
addition
- A functional group on the principal polymer chain.
radical group
pendant group
aromatic group
chain group
radical group
- Ring compounds consisting of carbon and other atoms.
aromatic
heterocyclic
terpolymer
copolymer
aromatic
- Which of the following compound gives a foul odor?
hydrogen sulfide
methane
carbon dioxide
nitrogen
hydrogen sulfide
- Aluminum chloride is found to exist as a
monomer
dimer
trimer
tetramer
dimer
- According to Bronsted - Lowry theory, an acid is a substance that can
accept an electron pair
donate an electron pair
accept a proton
donate a proton
donate a proton
- A gamma-ray source for radiation therapy treatments.
uranium-235
cobalt-60
uranium-236
plutonium-239
cobalt-60
- The Lucas test is used to determine the types of
alcohols
amines
acids
amino acids
alcohols
- A carboxylic acid which contributes to the strong odor of rancid butter and other fats.
caproic acid
acetic acid
lactic acid
butyric acid
butyric acid
- Which one of the following is not a metal?
Al
O
Zn
Hg
O
- Which one of the following is a metalloid?
Al
Ge
Be
Zn
Ge
- Which one of the following is improperly labeled?
K-alkali metal
Ca-alkaline earth metal
Xe-chalcogen
Br-halogen
Xe-chalcogen
- Which one of the following is improperly labeled?
Na-alkali metal
Kr-noble gas
Ba-alkaline earth metal
I-chalcogen
I-chalcogen
- Which of the following statements is incorrect?
saltpeter,KNO3, is really potassium nitrate
soda ash, Na2 CO3, is really sodium carbonite
lime, CaO, is really calcium oxide
muriatic acid, HCl, is really hydrochloric acid
soda ash, Na2 CO3, is really sodium carbonite
- Which one of the following is named correctly?
calcium sulfide, Ca(HS)2
bromic acid , HBrO2
aluminum nitride, AlN
iron(III) oxide, FeO
aluminum nitride, AlN
- Which is incorrectly named, using the rules for binary molecular compounds?
SbCl3-antimony trichloride
C2O5-dicarbon pentoxide
H3As-hydrogen arsenide
NO2 nitrogen dioxide
H3As-hydrogen arsenide
- Balance the following equation and indicate whether it is a combustion, combination, or decomposition reaction : Li + N2 Li3N
6Li + N2 -> 2Li3N, combination reaction
Li + N2 -> 3Li3N, combination
6Li + N2 -> 2Li3N, decomposition reaction
Li + N2 -> 3Li3N , combustion
6Li + N2 -> 2Li3N, combination reaction
- ______ involves electron transfer from one atom to another?
covalent bonding
ionic bonding
hydrogen bonding
metallic bonding
ionic bonding
- Which of the following is responsible for the abnormally high boiling point of water?
covalent bonding
hydrogen bonding
high polarity
large dielectric constant
hydrogen bonding
- sp² hybridization will be found for carbon in
CH4
C2H4
C2H2
CH3OH
C2H4
- . Saponification is a reaction in which a tricylglycerol reacts with a strong base to form
glycerol and three soap molecules
glycerol and three water molecules
three fatty acid molecules and water
oleic acid and water
glycerol and three soap molecules
- The alkane containing a total of 20 hydrogen atoms must be an isomer of
cyclononane
decane
eicosane
nonane
nonane
