Quiz 24 Flashcards
- Which of the following is an isomer of heptane?
3-ethylpentane
2-methyloctane
2-methylheptane
Methylcyclohexane
3-ethylpentane
- How many different isomers of pentane are there?
only one
three
four
five
three
- Aldehydes maybe prepared by oxidizing
primary alcohols
secondary alcohols
tertiary alcohols
ketones
primary alcohols
- Name the group of compounds with the general formula RCOOR’.
ether
ester
ketones
aldehydes
ester
- Name the compound : CH3CH2CHO
2-propanol
propanal
butanone
2-butene
propanal
- Name the compound (C6H5)2NH
diphenylamine
ethyl acetate
butyl alcohol
ether
diphenylamine
- What compound among the alcohols contains the fewest possible carbon atom?
ethanol
methanol
propanol
butanol
methanol
- Name the compound HCO2H
methyl formate
acetone
dimethyl ether
formic acid
formic acid
- A carbonyl compound is
One carbon and one oxygen bounded by a double bond.
One carbon and one oxygen bounded by a single bond.
One carbon and two oxygen bounded by one single and one double bond.
One carbon and two oxygen bounded by two double bonds.
One carbon and one oxygen bounded by a double bond.
- Esterification is the reaction of carboxylic acid with
water
alkyl halide
alcohol
ammonia
alcohol
- An isomer of ethanol is
Methanol
ethylene glycol
dimethyl ether
acetone
dimethyl ether
- Which has the most number of carbon atoms; trichloromethane, dichloromethane, chloromethane?
trichloromethane
dichloromethane
chloromethane
all the same
all the same
- How many carbon atoms are there in 2-bromo-2-pentene?
6
5
4
3
5
- A compound which has a bond formed by the overlap of sp-sp3 hybrid orbital is:
HC = CH
CH3 – C ≡ CH
CH3 – CH = CH2
H2C = C = CH2
CH3 – C ≡ CH
- A reaction in which the elements of water are eliminated from a molecule.
hydrolysis
dehydration
dehydrogenation
hydrogenation
dehydration
- It is an addition reaction initiated by an electron-deficient species.
electrophilic
nucleophilic
carbionic
reversible
electrophilic
- Which of the following is a saturated hydrocarbon?
alkane
alkene
alkyne
alkadiene
alkane
- Name : CH3 CHCl CH3
2-chloropropane
1-chloropropane
2-chlorobutane
1-chlorobutane
2-chloropropane
- Which of the following has the highest boiling point?
hexane
octane
decane
eicosane
eicosane
- In the fractional distillation of crude petroleum, gasoline is the fraction whose number of carbon in a molecule ranges from _____.
C1-C4
C5-C10
C11-C18
C15-C18
C5-C10
- What fraction of crude petroleum has 20 or more carbon atoms in a molecule?
kerosene
gas-oil
wax
residue
wax
- . A reaction in which atoms or groups are removed from adjacent atoms to form a double or triple bond.
substitution
elimination
addition
polymerization
elimination
- It is a specie that has a nonbonding pair of outer-shell electrons that it can share in a chemical reaction.
Lewis base
Lewis acid
Arrhenius acid
Arrhenius base
Lewis base
- It is a reaction in which the element of hydrogen is introduced into a molecule.
halogenation
hydration
hydrogenation
alkylation
hydrogenation
