Qualitative Analysis (OCR A-Level Chemistry A): Flashcards

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Qualitative Analysis
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Qualitative analysis definition

Method using observations, not measurements

Reagent for carbonate test

Dilute nitric acid (HNO3\text{HNO}_3)

CO2\text{CO}_2 effect on lime water

Turns cloudy/milky white

White precipitate in sulfate test

Barium sulfate (BaSO4\text{BaSO}_4)

Reagent for halide test

Silver nitrate (AgNO3\text{AgNO}_3)

AgCl\text{AgCl} precipitate color

White

AgBr\text{AgBr} precipitate color

Cream

AgI\text{AgI} precipitate color

Yellow

Correct anion test order

Carbonate → sulfate → halide

NH4+\text{NH}_4^+ test confirmation

Ammonia turns moist pH paper blue

Explore OCR A-Level Chemistry A Revision Notes by Topics

Periodicity

Reactivity Trends

Enthalpy

Reaction Rates and Equilibrium

Explore OCR A-Level Chemistry A Model Answers by Topics

Periodicity

Reactivity Trends

Enthalpy

Reaction Rates and Equilibrium

Explore OCR A-Level Chemistry A Quizzes by Topics

Periodicity

Reactivity Trends

Enthalpy

Reaction Rates and Equilibrium

Explore OCR A-Level Chemistry A Exam Questions by Topics

Periodicity

Reactivity Trends

Enthalpy

Reaction Rates and Equilibrium

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