Last updated on Oct 23, 2026

Chemical Properties of Group 7 (AQA A-Level Chemistry): Quizzes

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Chemical Properties of Group 7

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What type of reaction occurs when NaCl reacts with concentrated $H_2SO_4$ ?

Acid-base only

What is observed when NaCl reacts with concentrated $H_2SO_4$ ?

Misty white fumes

What colour vapour is produced when NaBr reacts with concentrated $H_2SO_4$ ?

Red-brown

Which observation is characteristic of NaI reacting with concentrated $H_2SO_4$ ?

Purple iodine vapour

In the redox reaction of HBr with $H_2SO_4$ , what is the oxidation state change of Br?

$-1$ to $0$

To which oxidation state is sulfur NOT reduced when NaI reacts with concentrated $H_2SO_4$ ?

$+2$

Which halide is the strongest reducing agent?

Iodide

What is the sulfur-containing product in the redox reaction of NaBr with $H_2SO_4$ ?

$SO_2$

Which product is NOT formed when NaI reacts with concentrated $H_2SO_4$ ?

$SO_3$

What causes the rotten egg smell in the NaI and $H_2SO_4$ reaction?

$H_2S$

Explore AQA A-Level Chemistry Revision Notes by Topics

Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

Explore AQA A-Level Chemistry Model Answers by Topics

Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

Explore AQA A-Level Chemistry Flashcards by Topics

Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

Explore AQA A-Level Chemistry Exam Questions by Topics

Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

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