Waec Model Questions Vol1 2021 Chemistry Question 14

Practice objective / multiple choice question 14 from the 2021 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Hard Difficulty
Question 14 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

A 1.00 g sample of an unknown metal reacts with an aqueous solution of Cu²⁺ ions, precipitating 1.32 g of copper metal. (Assume the reaction: M(s) + Cu²⁺(aq) → M²⁺(aq) + Cu(s)). Determine the equivalent weight of the metal and identify the metal, given that it belongs to the first transition series and has an atomic number less than 30.

Answer Options

A. Equivalent weight ≈ 22.5 g·equiv⁻¹; metal is vanadium (V)
B. Equivalent weight ≈ 26.0 g·equiv⁻¹; metal is chromium (Cr)
Correct Answer C. Equivalent weight ≈ 24.0 g·equiv⁻¹; metal is titanium (Ti)
D. Equivalent weight ≈ 20.0 g·equiv⁻¹; metal is scandium (Sc)
Correct Answer
C
Correct Option:
Equivalent weight ≈ 24.0 g·equiv⁻¹; metal is titanium (Ti)

About This Question

This is Waec Model Questions Vol1 2021 Chemistry Question 14. It is a objective / multiple choice question from the 2021 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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