Organic Chapter 4: Organic Analysis

Question 1

How can you test for different types of alcohols?

Answer 1

Oxidise them with acidified potassium dichromate
Primary - orange solution goes green
Secondary - Orange solution goes green
Tertiary - remians orange

Tell between Primary & secondary by using tollen’s reagent, distill the product & the reagent will form a silver mirror if the alcohol is secondary

Question 2

How do you test for carboxylic acids?

Answer 2

Add sodium carbonate & bubble the gas through some limewater. If the limewater goes cloudy, there is a carboxylic acid.

Question 3

What analytical technique can be used to help identify any compound?

Answer 3

Mass Spectrometry

Question 4

What forms does high resolution Mass spectrometry take?

Answer 4

C-NMR, H-NMR, and Infrared Spectroscopy