4265294
Questão 1
Questão
What shape is a sp3 hybridised C?
Responda
-
Tetrahedral
-
Trigonal planar
-
Linear
Questão 2
Questão
What shape is a sp2 hybridised C
Responda
-
Tetrahedral
-
Trigonal planar
-
Linear
Questão 3
Questão
What shape is a sp hybridised C
Responda
-
Tetrahedral
-
Trigonal planar
-
Linear
Questão 4
Questão
Alkanes are unsaturated hydrocarbons. True or false?
Responda
- True
- False
Questão 5
Questão
Alkenes are [blank_start]more[blank_end] reactive than alkanes because the delocalised electrons make them susceptible to attack by electrophiles.
Responda
-
more
Questão 6
Questão
Alkenes undergo [blank_start]electrophilic addition reactions[blank_end]
Responda
-
electrophilic addition reactions
Questão 7
Questão
Alkynes are [blank_start]less[blank_end] reactive than alkenes.
Responda
-
less
Questão 8
Questão
Alkynes undergo
Responda
-
Substitution reactions
-
Electrophilic addition reactions but at a quicker rate than alkenes
-
Nucleophilic substitution reactions
-
Electrophilic addition reactions but at a slower rate than alkenes
Questão 9
Questão
Arenes are [blank_start]highly unsaturated[blank_end] and [blank_start]cyclic.[blank_end]
Responda
-
highly unsaturated
-
cyclic.
Questão 10
Questão
Arenas do not behave like alkenes and alkynes because they [blank_start]do not decolourise bromine water.[blank_end]
Responda
-
do not decolourise bromine water.
Questão 11
Questão
What type of molecule is benzene?
Responda
-
Trigonal planar
-
Planar
-
Linear
-
Tetrahedral
Questão 12
Questão
Benzene is a colourless liquid.
Responda
- True
- False
Questão 13
Questão
Boiling point of benzene?
Responda
-
90 degrees
-
100 degrees
-
70 degrees
-
80 degrees
Questão 14
Questão
Melting point of benzene
Responda
-
5.5 degrees
-
10 degrees
-
3 degrees
-
2.5 degrees
-
1 degrees
Questão 15
Responda
-
Aspirin
Questão 16
Responda
-
Ibuprofen
Questão 17
Responda
-
Diazepam
Questão 18
Questão
The halogen atom on an alkylhalide atom is attached to what other atom?
Responda
-
Trigonal sp2 carbon atom
-
Tetrahedral sp carbon atom
-
Trigonal sp3 carbon atom
-
Tetrahedral sp3 carbon atom
-
Trigonal sp carbon atom
Questão 19
Questão
The bond in alkylhalide are non-polar.
Responda
- True
- False
Questão 20
Questão
[blank_start]Cl-, Br- and I-[blank_end] are good leaving groups in nucleophilic substitution reactions.
Responda
-
Cl-, Br- and I-
Questão 21
Questão
Alkyl fluorides and fluorocarbons are relatively unstable.
Responda
- True
- False
Questão 22
Questão
Although the halogen-alkane bond is polar, they do not have a [blank_start]corresponding electron deficient region.[blank_end]
Responda
-
corresponding electron deficient region.
Questão 23
Questão
Although the halogen-alkane bond is polar, they do not [blank_start]interact strongly with water molecules.[blank_end]
Responda
-
interact strongly with water molecules.
Questão 24
Questão
Although the halogen-alkane bond is polar, they are generally _____
Responda
-
less lipophilic than corresponding non-halogenated molecules
-
more hydrophilic than corresponding non-halogenated molecules
-
more lipophilic than corresponding non-halogenated molecules
-
less hydrophilic than corresponding non-halogenated molecules
Questão 25
Questão
Tick all that is correct about halogens in drugs
Responda
-
Generally make the drug more lipophilic than corresponding non-halogenated molecules
-
Generally make the drug less lipophilic than corresponding non-halogenated molecules
-
Halogenated drugs are less readily metabolised than non-halogenated forms
-
Halogenated drugs are more readily metabolised than non-halogenated forms
Questão 26
Responda
-
DDT
Questão 27
Questão
Tick all that is correct about DDT
Responda
-
Persistent in the environment
-
Chemically unstable
-
Chemically stable
-
Highly resistant to metabolism
-
Not very resistant to metabolism
Questão 28
Questão
Short-chain alcohols are [blank_start]freely miscible with water.[blank_end]
Responda
-
freely miscible with water.
Questão 29
Questão
The interaction between short-chain alcohols and water can be explained [blank_start]by hydrogen bonding.[blank_end]
Responda
-
by hydrogen bonding.
Questão 30
Questão
A permanent dipole exists in alcohol because of ...
Responda
-
Electronegativity of the hydrogen
-
Electronegativity of the oxygen
-
Electropositive oxygen
-
Electropositive hydrogen
Questão 31
Questão
R-OH dissociates to give [blank_start]R-O-[blank_end]
Responda
-
R-O-
Questão 32
Questão
R-OH accepts a [blank_start]proton to give R-OH2+[blank_end]
Responda
-
proton to give R-OH2+
Questão 33
Questão
Acidity of alcohols depends on the [blank_start]R-group[blank_end]
Responda
-
R-group
Questão 34
Questão
pKa is the [blank_start]negative log[blank_end] of acid dissociation constant
Responda
-
negative log
Questão 35
Questão
Acidity of molecule is increased if it has [blank_start]electron withdrawing group[blank_end] near the -OH group
Responda
-
electron withdrawing group
Questão 36
Questão
Acidity of molecule is also dependent on if the rest of the molecule can [blank_start]stabilise the negative charge.[blank_end]
Responda
-
stabilise the negative charge.
Questão 37
Questão
Phenols are [blank_start]stronger acids[blank_end] than alcohols.
Responda
-
stronger acids
Questão 38
Questão
Phenoxide ions are [blank_start]resonance stabilised.[blank_end]
Responda
-
resonance stabilised.
Questão 39
Questão
What does the -OH functional group do and in what condition?
Responda
-
Release H+ in aqueous solution.
Questão 40
Questão
Relate the O- to the stability of the molecule
Responda
-
Resonance stabilises the negative charge
Questão 41
Questão
Fluorine is strongly electronegative.
Responda
- True
- False
Questão 42
Questão
The C-F bond in fluorine is polarised.
Responda
- True
- False
Questão 43
Questão
In fluorine, the partially positive charge on the carbon [blank_start]stabilises[blank_end] the negative charge on the hydroxyl group.
Responda
-
stabilises
Questão 44
Questão
Tick all that is correct about the reactivity of phenols.
Responda
-
Readily oxidised
-
Not so readily oxidised
-
Products are colourless because of the conjugated bonds
-
Products are frequently coloured because of the conjugated bonds
Questão 45
Questão
Contribution of alcohols to the properties of drugs: tick all that is correct about hydrogen bonding
Responda
-
Decreases the polarity of molecule
-
Increases the polarity of molecule
-
Adds to water solubility but generally not sufficient alone to ensure full water solubility
-
Ensures full water solubility
-
Involved in drug-target interactions as either a hydrogen bond donor or acceptor
Questão 46
Responda
-
Diethylether
Questão 47
Responda
-
Morphine
Questão 48
Questão
Tick all this correct about ethers
Responda
-
Do not have hydrogen attached to the oxygen
-
Can be hydrogen bond donors
-
Can be hydrogen bond acceptors
-
Show full water solubility
-
Show partial water solubility
-
Solubility increases with chain length
-
Solubility decreases with chain length
Questão 49
Questão
Ethers can form [blank_start]peroxides in contact with air.[blank_end]
Responda
-
peroxides in contact with air.
Questão 50
Questão
Ethers are generally non-reactive
Responda
- True
- False
Quer criar seus próprios Quizzes gratuitos com a GoConqr? Saiba mais.