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