Waec Model Questions Vol1 2017 Chemistry Question 8

Practice essay / theory question 8 from the 2017 Waec Model Questions Vol1 Chemistry examination. This question covers qualitative analysis, inorganic chemistry .

Waec Model Questions Vol1 2017 Chemistry Essay / Theory

Topics: qualitative analysis inorganic chemistry

Question 8 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • essay

A sample of an unknown inorganic solid is suspected to contain a mixture of metal ions. The following reagents are added in succession to separate the ions:

Question Parts

( a )

When dilute HCl is added, a white precipitate forms which dissolves on heating. Identify the ion responsible and explain the observed behaviour.

( b )

After filtering, the filtrate is treated with ammonium hydroxide. A blue precipitate appears which is insoluble in excess NH₄OH. Identify the ion and give the chemical equation for its precipitation.

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About This Question

This is Waec Model Questions Vol1 2017 Chemistry Question 8. It is one of the essay questions from the 2017 Waec Model Questions Vol1 Chemistry examination.

The question covers qualitative analysis, inorganic chemistry .

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