Igcse Model Questions Vol1 2020 Chemistry Question 2

Practice practical question 2 from the 2020 Igcse Model Questions Vol1 Chemistry examination. This question covers Periodic table, Flame test, Group identification .

Igcse Model Questions Vol1 2020 Chemistry Practical

Topics: Periodic table Flame test Group identification

Question 2 IGCSE_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • practical

A student performed flame‑test investigations on four known metal salts and an unknown metal salt. The observations are recorded in the table below. | Sample | Flame colour observed | |-------------------|-----------------------| | Sodium chloride (NaCl) | Bright yellow | | Potassium chloride (KCl) | Lilac | | Calcium chloride (CaCl₂) | Brick‑red | | Barium chloride (BaCl₂) | Green | | Unknown metal salt | Bright orange‑red | Answer the questions that follow.

Question Parts

( a )

Identify the metal ion present in the unknown sample.

( b )

State the group of the periodic table to which this metal belongs.

( c )

Using periodic trends, justify why the flame colour of the unknown differs from those of the known salts.

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About This Question

This is Igcse Model Questions Vol1 2020 Chemistry Question 2. It is one of the practical questions from the 2020 Igcse Model Questions Vol1 Chemistry examination.

The question covers Periodic table, Flame test, Group identification .

View More Igcse Model Questions Vol1 2020 Chemistry Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

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