Notes for exam in jan
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the mobile Phase in TLC? | Solvent (Normally alcohol)
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| What is the mobile Phase in Gas Chromatography? | Inert Gas (Helium)
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| How does separation occur in Chromatography? | Solid mobile phase - Adsorption Liquid mobile phase - Solubility
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| What is Retention factor? | (Distance moved by Component)/(distance moved by solvent front)
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| Why is TMS used in NMR? | 1 Environment - one peak Many protons - sharp peak
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| How do you remove the OH peak from an NMR spectrum? | Add Deuterium, and shake, then repeat.
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| Oxidation of propane-1-ol will form what? | propanal (distillation) Propanoic acid (reflux)
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| oxidation of propane-2-ol will form what? | propanone (reflux)
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| reduction of butanoic acid will form? | butanol
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| The joining of ethanol and octanoic acid, with a small molecule of water removed, is? | esterification - it will form ethyl octanoate.
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| Carbonyl compounds produce what, when added to 2,4 - DNPH? | Orange Precipitate
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| What are the reagents for nitration of benzene? | HNO3 and H2SO4 conditions: 50 degrees celcius
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| What are the reagents for diazotisation? | NaNO2 and HCl (HONO) Below 10 degrees celcius
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| How do you turn diazonium chloride into an azodye? | add phenol and NaOH, the Na removes the Cl, and the Phenol adds to the salt.
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| What is the most reactive halogen? | fluorine
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Created by:
krisb2
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