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Identification Of Cations Flashcards

1
Q

What is the cation for Ammonium?

A

NH4+

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2
Q

What is the cation for Aluminium?

A

Al3+

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3
Q

What is the cation for Zinc?

A

Zn2+

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4
Q

What is the cation for Calcium?

A

Ca2+

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5
Q

What is the cation for Copper?

A

Cu2+

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6
Q

What is the cation for Chromium?

A

Cr3+

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7
Q

What is the cation for Iron (II)?

A

Fe2+

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8
Q

What is the cation for Iron (III)?

A

Fe3+

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9
Q

What is the test result for Ammonium with Aqueous Sodium Hydroxide?

A

Ammonia produced turns damp red litmus paper blue.

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10
Q

What is the test result for Aluminium with Aqueous Sodium Hydroxide?

A

White ppt, soluble in excess giving a colourless solution.

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11
Q

What is the test result for Zinc with Aqueous Sodium Hydroxide?

A

White ppt, soluble in excess giving a colourless solution.

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12
Q

What is the test result for Calcium with Aqueous Sodium Hydroxide?

A

White ppt, insoluble in excess.

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13
Q

What is the test result for Copper with Aqueous Sodium Hydroxide?

A

Light blue ppt, insoluble in excess.

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14
Q

What is the test result for Chromium with Aqueous Sodium Hydroxide?

A

Green ppt, soluble in excess.

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15
Q

What is the test result for Iron (II) with Aqueous Sodium Hydroxide?

A

Green ppt, insoluble in excess.

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16
Q

What is the test result for Ammonium with Aqueous Ammonia?

A

No reaction

17
Q

Iron (III) (Fe3+) with Sodium Hydroxide (aq)

A

Red-Brown ppt, insoluble in excess of

18
Q

Zinc, Zn2+ with aqueous Ammonia

A

White ppt, soluble in excess, giving clearless solution

19
Q

Calcium, Cu2+ with Aqueous Ammonia

A

No ppt, very slight white ppt

20
Q

Copper, Cu2+, with aqueous Ammonia

A

Light blue ppt, soluble in excess giving dark blue solution

21
Q

Chromium, Cr3+, with aqueous Ammonia

A

Grey green ppt, insoluble in excess

22
Q

Iron (II) Fe2+ with Aqueous Ammonia

A

Green ppt, insoluble in excess of

23
Q

Iron (III) Fe3+ with aqueous Ammonia

A

Red brown ppt, insoluble in excess

Chemistry (4 decks)

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