Cation, Anion & Flame Tests

Descripción

GCSE Chemistry Test sobre Cation, Anion & Flame Tests, creado por lisawinkler10 el 09/05/2015.
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Test por lisawinkler10, actualizado hace más de 1 año
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Creado por lisawinkler10 hace más de 9 años
920
3

Resumen del Recurso

Pregunta 1

Pregunta
You acidify an anion in solution with Nitric Acid and then add aqueous Silver Nitrate. The result is a cream precipitate, what is the anion?
Respuesta
  • Iodide
  • Carbonate
  • Sulfate
  • Bromide
  • Chloride

Pregunta 2

Pregunta
You repeat the test, this time with the anion Chloride in solution. What is the result?
Respuesta
  • Yellow ppt.
  • Cream ppt.
  • Reddish-brown ppt.
  • White ppt.
  • Effervescence and Carbon Dioxide produced

Pregunta 3

Pregunta
The result of a solution with aqueous Sodium Hydroxide is a white ppt. which is insoluble in excess. What is the result with aqueous Ammonia?
Respuesta
  • White ppt. Insoluble in excess.
  • No (or very slight white ppt.)
  • White ppt. Soluble in excess.
  • Ammonia produced on warming.

Pregunta 4

Pregunta
What cation was this?
Respuesta
  • Aluminium
  • Calcium
  • Copper
  • Zinc

Pregunta 5

Pregunta
You hold a flame test loop at the edge of a bunsen burner flame. The flame turns orange. What metal does this indicate?
Respuesta
  • Sodium
  • Lithium
  • Calcium
  • Barium
  • Potassium
  • Copper

Pregunta 6

Pregunta
What metal is held in this flame?
Respuesta
  • Lithium
  • Copper
  • Calcium
  • Potassium
  • Sodium
  • Barium

Pregunta 7

Pregunta
For Iron's oxidation state +2, what is the result with aqueous Sodium Hydroxide?
Respuesta
  • White ppt. Soluble in excess.
  • Yellow ppt. Soluble in excess.
  • Grey-Green ppt. Insoluble in excess.
  • Reddish-Brown ppt. Insoluble in excess.
  • Reddish-Brown ppt. Soluble in excess.

Pregunta 8

Pregunta
What is the test for Nitrate?
Respuesta
  • Add dilute acid
  • Add dilute Hydrochloric Acid, then aqueous Barium Nitrate
  • Add aqueous Sodium Hydroxide, then aluminium foil and warm carefully
  • Acidify with dilute Nitric Acid, then add aqueous Silver Nitrate

Pregunta 9

Pregunta
Which three cations have a white ppt. with both aqueous Sodium Hydroxide and aqueous Ammonia?
Respuesta
  • Aluminium
  • Zinc
  • Calcium
  • Copper
  • Iron(III)
  • Ammonium
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