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Chemistry - paper 6 > Cations (Tests) > Flashcards

Cations (Tests) Flashcards

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1
Q

Aluminium
in sodium hydroxide (aq)
in ammonia (aq)

A

WHITE ppt
SOLUBLE in excess, giving a CLESS solution

WHITE ppt
INSOLUBLE in excess

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2
Q

Ammonium
in sodium hydroxide (aq)
in ammonia (aq)

A

AMMONIA produced on warming

No reaction

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3
Q

Calcium
in sodium hydroxide (aq)
in ammonia (aq)

A

WHITE ppt
INSOLUBLE in excess

No/ very slight white ppt

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4
Q

Chromium
in sodium hydroxide (aq)
in ammonia (aq)

A

GREEN ppt
SOLUBLE in excess

GREEN ppt
INSOLUBLE in excess

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5
Q

Copper
in sodium hydroxide (aq)
in ammonia (aq)

A

light BLUE ppt
INSOLUBLE in excess

light BLUE ppt
SOLUBLE in excees giving a DARK BLUE solution

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6
Q

Iron (II)
in sodium hydroxide (aq)
in ammonia (aq)

A

GREEN ppt
INSOLUBLE in excess

GREEN ppt
INSOLUBLE in excess

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7
Q

Iron (III)
in sodium hydroxide (aq)
in ammonia (aq)

A

RED/BROWN ppt
INSOLUBLE in excess

RED/BROWN ppt
INSOLUBLE in excess

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8
Q

Zinc
in sodium hydroxide (aq)
in ammonia (aq)

A

WHITE ppt
SOLUBLE in excess giving a CLESS solution

WHITE ppt
SOLUBLE in excess giving a CLESS solution

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Chemistry - paper 6 (6 decks)

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