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Chemistry session 6 > C8 Qualitative analysis > Flashcards

C8 Qualitative analysis Flashcards

1
Q

Test and result of carbonates

A

Add dilute acid- produces effervescence/ fizzing, carbon dioxide produced. Limewater turns milky

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2
Q

Test and result of chlorides

A

Acidify with dilute nitric acid and add silver nitrate- produces white precipitate

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3
Q

Test and result for nitrates

A

Add aqueous sodium hydroxide and add aluminium foil, warm carefully- produces ammonia. Turns damp red litmus blue

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4
Q

Test and result for sulfates

A

Acidify with dilute nitric acid then add aqueous barium nitrate- produces white precipitate (barium sulphate)

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5
Q

Test and results for ammonium

A

Aqueous sodium hydroxide- ammonia produced on warming

Aqueous ammonia- N/A

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6
Q

Test and results for copper II

A

Aqueous sodium hydroxide- light blue precipitate, insoluble in excess
Aqueous ammonia- light blue precipitate, soluble in excess, making dark blue solution

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7
Q

Test and results for Iron II

A

Aqueous sodium hydroxide- green precipitate, insoluble in excess
Aqueous ammonia- green precipitate, insoluble in excess

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8
Q

Test and results for Iron III

A

Aqueous sodium hydroxide- red-brown precipitate, insoluble in excess
Aqueous ammonia- red-brown precipitate, insoluble in excess

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9
Q

Test and results for zinc

A

Aqueous sodium hydroxide- white precipitate, soluble in excess, giving colorless solution
Aqueous ammonia- white precipitate, soluble in excess, giving colorless solution

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10
Q

Test for ammonia gas

A

turns damp red litmus paper blue

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11
Q

Test for carbon dioxide

A

turns limewater milky

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12
Q

Test for chlorine

A

Bleaches damp litmus paper

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13
Q

Test for hydrogen gas

A

squeaky pop, lighted splint

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14
Q

Test for oxygen

A

relights glowing splint

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15
Q

Flame test for Potassium

A

lilac/purple color

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16
Q

flame test for sodium

A

golden yellow color

17
Q

flame test for calcium

A

brick red color

18
Q

flame test for copper

A

bluish green color

19
Q

flame test for iron

A

sparks visible

Chemistry session 6 (2 decks)

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