alcohols Flashcards
1
Q
how to form an aldehyde from a primary/secondary alcohol
A
oxidation
alcohol + {O} = Ald. +H2O
conditions;
distillation
catalyst H2SO4 & K2CR2O7
2
Q
what’s the test for oxidation ?
A
Cr2O7^2- ions form CR2^3+ ions - colour change is from orange to green
3
Q
How to form an ester from an Alcohol?
A
alc. + Carb.A. = ester (oate) +H2O
heated under reflux
catalysts; h2so4 + k2cr2o7
4
Q
how to form a CA from an alc.
A
alc. = CA + H2O
heated under reflux
catalyst: H2SO4 & k2cr2o7
5
Q
how to form haloalkanes from alcohols?
A
Alc. + (any comp with halide ion) NaBr = Bromoalkane +H2O + NaHsO4
reactants ; NaBr (s) + H2So4 (aq)
heated under reflux
6
Q
how to form an alkene from an alcohol
A
Alc. = alkene + H2O
cat. ; H2so4/ h3po4 (phos acid)
reaction is an elimination reaction
