Testing for chlorine halides using sulfuric acid Flashcards

1
Q

Chloride, bromide and iodide ions react with concentrated sulfuric acid to produce

A

toxic gases

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2
Q

These reactions should therefore be carried out in a

A

fume cupboard

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3
Q

The general reaction of the halide ions with concentrated sulfuric acid is:

where X is the halide ion

A

H2SO4(l) + X-(aq) → HX(g) + HSO4-(aq)

where X is the halide ion

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4
Q

Reaction of chloride ions with concentrated sulfuric Acid

Concentrated sulfuric acid is dropwise added to sodium chloride crystals to produce

A

hydrogen chloride gas

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5
Q

Concentrated sulfuric acid is dropwise added to sodium chloride crystals to produce hydrogen chloride gas
reaction

The HCl gas produced is seen as

A

H2SO4 (l) + NaCl (s) → HCl (g) + NaHSO4 (s)

white fumes

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6
Q

The reaction of sodium bromide and concentrated sulfuric acid is:

A
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