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Organic analysis (chemical tests)

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Total cards: 7•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (7)

#1
Front (Question)

what is the test for alkenes then result

Back (Answer)

• shake with bromine water • orange to colourless

#2
Front (Question)

What is the test for haloalkanes, then result

Back (Answer)

• add warm NaOH • add acidified AgNO3 • precipitate of AgX

#3
Front (Question)

result for Haloalkanes and how you’d tell the difference

Back (Answer)

• precipitate of AgX • chloro - white precipitate • bromo - cream precipitate • iodo - yellow precipitate

#4
Front (Question)

how to distinguish between the white,cream and yellow ppt

Back (Answer)

• chloro (white ppt) dissolves in dilute ammonia • bromo (cream ppt) dissolves in concentrated ammonia • Iodo (yellow ppt) doesn’t dissolve and there’s no visible change

#5
Front (Question)

what is the test for Alcohols, and what is the result

Back (Answer)

• add acidified potassium dichromate (K2Cr2O7) • orange to green (only primary and secondary)

#6
Front (Question)

what are the tests for aldehydes and the results

Back (Answer)

• warm with Fehling’s solution • Blue solution to red ppt • warm with Tollen’s solution • Silver mirror formed

#7
Front (Question)

what is the test for Carboxylic acids and the result

Back (Answer)

• add NaHCO3 • CO2 given off/fizzing/effervescence