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WorksheetsAlcohols, haloalkanes and analysis (4.2)
Total questions: 36
Worksheet time: 23mins
What is TRUE for alcohols?
General formula of CnH(2n+1)OH
Higher boiling point than alkenes
Can preform esterification with -COOH
Aren't soluble in water
An alcohol group attatched to a carbon atom that's attached to only one other carbons is...
(a)
An alcohol group attatched to a carbon atom that's attached to three other carbons is...
(a)
An alcohol group attatched to a carbon atom that's attached to two other carbons is...
(a)
What intermolecular bond allows for alcohols to be soluble in water?
Hydrogen bonds
London forces
Induced dipole-dipole
Permanent dipole-dipole
Which two are needed in the oxidation of alcohols?
K2Cr2O7
H2SO4
Mg(OH)2
HCl
Which type of alcohol doesn't oxidise?
Primary
Secondary
Tertiary
What are the products of oxidation of a primary alcohol in distillation?
Water
-COOH
Ketone
Aldehyde
What are the products of oxidation of a primary alcohol in reflux?
Water
-COOH
Ketone
Aldehyde
What are the products of oxidation of a secondary alcohol in reflux?
Water
-COOH
Ketone
Aldehyde
What type of bond is this?
(a)
Alcohols and -COOH form polyesters through which type of reaction?
Condensation
Hydrolysis
Addition
Substitution
What are the products of a condensation reaction with and -OH and -COOH?
Ester
Water
Alcohol
Ketone
What is this ester?
(a)
Dehydration of alcohols is what kind of reaction?
Elimination
Addition
Condensation
Substitution
What temperature is needed for the dehydration of alcohols?
170*C
170K
193*C
193K
What reagant is used for the dehydration of alcohols?
H2SO4
HCl
K2Cr2O7
NH3
What are the products formed from dehydration of alcohols?
Water
Alkene
Alkane
Ketone
What are the products of halide substitution of alcohols?
Water
Haloalkane
Alkene
Alkane
What is needed for halide substitution of alcohols?
Hydrogen halide
H2SO4
Heat
Oxidising agent
What are the two components of haloalkanes?
Halogens
Alkanes
Alkenes
Hydrogen
Hydrolysis of haloalkanes is what type of reaction?
Nucleophilic Substitution
Electrophilic Substitution
Nucleophilic Addition
Electrophilic Addition
What are the products formed from the hydrolysis of haloalkanes?
Halogen ion
Alcohol
Water
Alkane
Which heating technique must have an open top?
Distillation
Reflux
A serpating funnel separates compunds based on...
Density
State
Melting point
Volume
Drying agents, are solids that absorb water. Which are drying agents?
Magnesium Sulphate
Calcium Chloride
Magnesium Hydroxide
Nickel
What does infrared spectroscopy measure?
Bond vibration frequencies
Heat absorbtion of bonds
Bond enthalphies
The electronegativity of the bonds
If there is a peak at 1640-1750wavenumber/cm-1 on an infra-spec what functional group is present?
-COOH
C=O
-OH
C=C
If there is a peak at 2500-3300wavenumber/cm-1 (very broad) with a C=O on an infra-spec what functional group is present?
-COOH
C=O
-OH
C=C
If there is a peak at 3200-3550wavenumber/cm-1 (broad) on an infra-spec what functional group is present?
-COOH
C=O
-OH
C=C
What is detected in Mass Spectromotry?
Positive ions
Negative ions
Bond enthalpies
Ionisation energies
The peak with the largest m/r on mass spec is what?
The Mr of the compound
The Mr of most frequent fragment
The most electronegative fragment
The highest enthalpy
On a mass spec, what would an m/r of 15 mean?
CH3+
OH+
C2H5+
C4H9+
On a mass spec, what would an m/r of 17 mean?
CH3+
OH+
C2H5+
C4H9+
On a mass spec, what would an m/r of 29 mean?
CH3+
OH+
C2H5+
C4H9+
On a mass spec, what would an m/r of 57 mean?
CH3+
OH+
C2H5+
C4H9+
