Organic Analysis And Mass Spectrometry

Question 2

Whats the result of the test for an alkene

Answer 2

Bromine water go from orange to colourless

Question 3

Whats the test for an halogenoalkane

Answer 3

1. Add NaOH(aq) and warm
   2.acidify with HNO3
2. Add AgNO3(aq)

Question 4

Whats the result for the test for haloalkanes

Answer 4

A precipitate of AgX forms (colour depends on the halogen present)

Question 5

Test for alcohol (primary and secondary

Answer 5

Add acidified K2Cr2O7

Question 6

Result for test for alcohol

Answer 6

Orange colour of potassium dichromate turns green (only primary and secondary alcohols and with aldehydes)

Question 7

The 2 tests for aldehydes

Answer 7

Warm with Fehlings solution
Warm with Tollens solution

Question 8

Results for tests for aldehydes

Answer 8

Fehlings - blue turns to red precipitate
Tollens - silver mirror forms

Question 9

Test for carboxylic acids

Answer 9

Add NaHCO3 (aq)

Question 10

Result for test for carboxylic acids

Answer 10

CO2 given off

Question 11

Simple ways you can guess a compound or substance

Answer 11

Solid,liquid or gaseous
Is it acidic

Question 12

Simple test for polar groups

Answer 12

Does the compound dissolve in water

Question 14

Whats the test for an alkene

Answer 14

Shake with bromine water