4664293
Descripción
Test por Tali Skipper, actualizado hace más de 1 año
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Creado por Tali Skipper
hace más de 8 años
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Pregunta 1
Pregunta
What is the structure of a Primary alcohol?
Respuesta
Pregunta 2
Pregunta
The boiling points of alcohols increases as the chain length [blank_start]increases[blank_end] because there are [blank_start]more[blank_end] surface area contacts and stronger [blank_start]induced dipole-dipole[blank_end] interactions (London forces). Hydrogen bonds also increase the intermolecular force of attraction. The higher the forces of attraction the [blank_start]more[blank_end] energy needed to break the bonds.
Respuesta
-
increases
-
decreases
-
more
-
fewer
-
induced dipole-dipole
-
permanent dipole-dipole
-
permanent dipole-induced dipole
-
more
-
less
Pregunta 3
Pregunta
Which of these statements about alcohols are correct?
Respuesta
-
Volatility is where a substance can easily evaporate at RTP.
-
Hydrogen bonds decrease the volatility of an alcohol.
-
Hydrogen bonds increase the volatility of an alcohol.
-
The solubility of an alcohol decreases when the chain length increases.
-
Alcohols are non-polar molecules.
-
Volatility increases as the boiling point increases.
Pregunta 4
Pregunta
Fill in the state symbols for this [blank_start]combustion[blank_end] reaction.
C ₂H₅OH ([blank_start]l[blank_end]) + 3O₂ ([blank_start]g[blank_end]) ---> 2CO₂ ([blank_start]g[blank_end]) + 3H₂O ([blank_start]l[blank_end])
Respuesta
-
l
-
g
-
s
-
aq
-
g
-
l
-
s
-
aq
-
g
-
l
-
s
-
aq
-
l
-
g
-
s
-
aq
-
combustion
-
oxidation
-
reduction
Pregunta 5
Pregunta
What is a potential reagent for the oxidation of primary and secondary alcohols?
Respuesta
-
K₂Cr₂O₇
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CO₂
-
HCl
-
C₂H₆
Pregunta 6
Pregunta
What is the functional group of an ester?
Respuesta
-
-OH
-
-COOR
-
-COOH
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O-H
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O=H
Pregunta 7
Pregunta
Label the reactants and products of this reaction.
Respuesta
-
Propanoic acid
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Ethanol
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Hexanol
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Propanal
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Hydrochloric acid
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Butanoic acid
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Ethyl propanoate
-
Methyl propanoate
-
Ethyl butanoate
Pregunta 8
Pregunta
Esterification is reversible and has a slow rate of reaction.
Respuesta
- True
- False
Pregunta 9
Pregunta
For esterification to work a nickel catalyst is added to a test tube in a 100`C water bath.
Respuesta
- True
- False
Pregunta 10
Pregunta
All large molecule Esters are soluble in water.
Respuesta
- True
- False
Pregunta 11
Pregunta
Dehydration is a type of [blank_start]elimination[blank_end] reaction where water is [blank_start]lost[blank_end] from an organic compound.
The alcohols are heated under reflux with a strong [blank_start]acid[blank_end] catalyst (H₂SO₄) at [blank_start]170[blank_end]'C.
π-bonds form between adjacent [blank_start]carbon[blank_end] atoms and a [blank_start]water[blank_end] molecule is released from the H in the acid and the OH in the alcohols functional group.
Respuesta
-
elimination
-
lost
-
170
-
acid
-
water
-
carbon
Pregunta 12
Pregunta
The general formula for halide substitution is
ROH + HX --> RX + H₂O
Respuesta
- True
- False
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