ID Tests Flashcards by Jane Spenceley | Brainscape

Q

Amine + damp red litmus

Observation

Product

Type of reaction

A

Turns blue

Forms alkyl ammonium ion + OH^-

Acid/Base

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Q

Aldehyde + Fehling’s solution and heat

Observation

Product

Type of reaction

A

Blue solution forms red ppt

Forms carboxylic acid and CuO₂(s)

Oxidation

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Q

Alcohol + MnO₄^-/H⁺

Observation

Product

Type of reaction

A

Purple to colourless

Forms carboxylic acid

Oxidation

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Q

Acyl chloride + water

Observation

Product

Type of reaction

A

Bubbles of HCl gas produced

Forms carboxylic acid

Substitution

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Q

Carboxylic acid + damp blue litmus

Observation

Product

Type of reaction

A

Turns red

forms carboxylate ion and H₃O⁺

Acid/Base

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Q

Hydrocarbons + water

Observation

A

Forms layers

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Q

Aldehyde + Tollen’s reagent and heat

Observation

Product

Type of reaction

A

Silver mirror forms

Forms carboxylic acid and Ag(s)

Oxidation

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Q

Alkene + Br₂

Observation

Product

Type of reaction

A

Orange to colourless rapidly

Forms dibromo alkane

Addition

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Q

Alkene + MnO₄^-/H⁺

Observation

Product

Type of reaction

A

Purple to colourless

Forms diol (2 -OH groups)

Oxidation/Addition

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Q

Alcohol + Cr₂O₇^2-/H⁺

Observation

Product

Type of reaction

A

Orange to green

Forms carboxylic acid

Oxidation

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Q

Carboxylic acid + NaHCO₃ or Na₂CO₃

A

Bubbles

Forms carboxylate salt and CO₂

Acid/Base

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Q

Ketone

Observation

A

No specific test - a process of elimination

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Q

Alkane + Br₂

Observation

Product

Type of reaction

A

Orange to colourless slowly, only with UV light

Forms monobromo alkane

Substitution

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Q

Ester

Observation

A

Fruity smell

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Q

Aldehyde + Benedicts and heat

Observation

Product

Type of reaction

A

Blue solution forms red ppt

Forms carboxylic acid and CuO₂(s)

Oxidation

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Q

Organic compounds >4C’s long + water

Observation

A

Forms layers