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Chemistry IGCSE to Memorise > Cations > Flashcards

Cations Flashcards

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1
Q

NaOH: white ppt, soluble in excess (colorless solution)

A

Aluminium Al3+ or Zinc Zn2+

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2
Q

NaOH: produces ammonia on warming

A

Ammonium NH4+

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3
Q

NaOH: white ppt, insoluble in excess

A

Calcium Ca2+

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4
Q

NaOH: green ppt, soluble in excess

A

Chromium(iii) Cr3+

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5
Q

NaOH: light blue ppt, insoluble in excess

A

Copper Cu2+

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6
Q

NaOH: green ppt, insoluble in excess

A

Iron (ii) Fe2+

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7
Q

NaOH: red-brown ppt, insoluble in excess

A

Iron (iii) Fe 3+

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8
Q

NH4: white ppt, insoluble in excess

A

Aluminium Al3+

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9
Q

NH4: no ppt, or very slight white ppt

A

Calcium Ca2+

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10
Q

NH4: grey-green ppt, insoluble in excess

A

Chromium (iii) Cr3+

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11
Q

NH4: light blue ppt, soluble in excess (dark blue solution)

A

Copper Cu2+

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12
Q

NH4: green ppt, insoluble in excess

A

Iron (ii) Fe2+

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13
Q

NH4: red-brown ppt, insoluble in excess

A

Iron (iii) Fe 3+

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14
Q

NH4: white ppt, soluble in excess (colorless solution)

A

Zinc Zn2+

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Chemistry IGCSE to Memorise (4 decks)

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