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All Chemical Tests

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Total cards: 18•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (18)

#1
Front (Question)

Test for SO4 2- and positive result?

Back (Answer)

• Acidify with HCl then add BaCl • White precipitate of BaSO4

#2
Front (Question)

Test for CO3 2- and positive result?

Back (Answer)

Add dilute HCl Effervescence = +ve result

#3
Front (Question)

Test for OH- and positive result?

Back (Answer)

Damp red litmus paper Turns from red to blue

#4
Front (Question)

Test for Halide ions and positive result for each?

Back (Answer)

• Acidify with dilute HNO3 • Add AgNO3 • Dilute and concentrated NH3 Cl- = White ppt,dissolves in dilute NH3 Br- = Cream ppt dissolves in conc NH3 I- = Yellow ppt, insoluble

#5
Front (Question)

Test (‘s) for Mg 2+ ions and positive results?

Back (Answer)

Dilute NaOH- = White precipitate Dilute H2SO4= No visible change

#6
Front (Question)

Test (‘s) for Ca2+ and positive results?

Back (Answer)

Flame test- Brick red OH- - White ppt SO42- - Slight white precipitate

#7
Front (Question)

Test (‘s) for Sr 2+ and positive results?

Back (Answer)

Flame test- Red NaOH- No visible change H2SO4- Slight white precipitate

#8
Front (Question)

Test (‘s) for Ba2+ and positive results?

Back (Answer)

Flame test- Green NaOH- NO visible change H2SO4- White precipitate

#9
Front (Question)

Test for NH4+ and positive result?

Back (Answer)

Add NaOH Heat sample Hold damp red litmus paper at test tube mouth +ve= litmus paper from red to blue

#10
Front (Question)

Test for Co 2+ and positive result?

Back (Answer)

Add NH3 drop wise to excess Pink to blue solution

#11
Front (Question)

Tests for Cu 2+ and positive results?

Back (Answer)

Dilute NaOH- Pale blue ppt Dilute NH3- Pale blue ppt Conc NH3- Dark blue solution Na2CO3- Green-blue solution NaCl- Yellow solution

#12
Front (Question)

Tests for Fe 2+ and positive results?

Back (Answer)

Dilute NaOH- Green precipitate Dilute NH3- Green precipitate Na2CO3- Green ppt

#13
Front (Question)

Test for Fe 3+ and positive results?

Back (Answer)

Dilute NaOH,dilute NH3 and Na2CO3 - Orange-brown ppt NaCl- Yellow solution

#14
Front (Question)

Test for Al3+ and positive result?

Back (Answer)

Dilute NaOH and Dilute NH3 - WHite ppt XS NaOH- PPt dissolves Na2CO3- White ppt an effervescence

#15
Front (Question)

Test for Alkene and positive result?

Back (Answer)

Share with bromine water Solution changes from orange to colourless

#16
Front (Question)

Test for an alcohol and positive result?

Back (Answer)

Acidified potassium dichromate Orange to green for primary and secondary alcohols

#17
Front (Question)

Tests for an Aldehyde and positive results?

Back (Answer)

Warm with fehlings solution- Brick red ppt forms from blue solution Warm with Tollens reagent- Silver mirror

#18
Front (Question)

Test for a Carboxylic acid and positive result?

Back (Answer)

Added carbonate CO2 released (effervescence)