Distinguishing tests summary

Includes tests/ reactions for:-

  • Carbonl compounds
  • Aldehydes
  • Double bonds
  • Carboxylic acids
  • etc
HideShow resource information
  • Created by: Niki :)
  • Created on: 06-03-13 10:38
Preview of Distinguishing tests summary

First 212 words of the document:

Tests for aldehydes Test for carbonyl compounds Test for C-C double bond Oxidation
Fehling's solution - Add Brady's reagent Add bromine water Primary and secondary
blue solution to brick- Orange ppt formed for Solution goes from alcohols
red ppt both aldehydes & orange-brown to Heat with acidified
Tollens' reagent ­ ketones. colourless potassium dichromate
silver mirror forms Orange to green solution
Test for OH group Test for CO2 Test for halide ions
Add PCl5 Limewater goes cloudy Add NaOH(aq) and HNO3(aq); then add AgNO3
Steamy white fumes Ppt forms:
given off Test for H2 o Cl = White
Blue litmus paper turns o Br = Cream
Lit splint = squeaky pop
red. o I = Yellow
Add NH3 solution ppt dissolves and a colourless solution forms
Test for methyl aldehydes, ketones and alcohols- Reduction of carboxylic acids Carboxylic acids with
IODOFORM carbonates
Lithium tetrahydriodoaluminate in dry
Heat with I2 dissolved in NaOH(aq) ether at room temp Na2CO3 or NaHCO3=
Yellow ppt formed, antiseptic smell OR H2 with Ni catalyst sodium salt + CO2 +
Sodium salt also formed OR NaBH4 followed by H2O H2O
= primary or secondary alcohol produced


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »