Igcse Model Questions Vol1 2024 Chemistry Question 6

Practice objective / multiple choice question 6 from the 2024 Igcse Model Questions Vol1 Chemistry examination.

Igcse Model Questions Vol1 2024 Chemistry Objective / Multiple Choice Hard Difficulty
Question 6 IGCSE_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • objective

A 100.0 g sample of an ore consisting solely of a metal oxide with formula \(M_{2}O_{5}\) is reduced with carbon at high temperature. The reaction produces 56.0 g of the pure metal \(M\) and carbon dioxide gas. (a) Determine the atomic mass of the metal \(M\) (to one decimal place) and identify the metal from the periodic table. (b) If the theoretical mass of metal that could be obtained from 100.0 g of the ore is 60.0 g, calculate the percent yield of the actual reduction.

Answer Options

A. Atomic mass ≈ 50.9 g·mol⁻¹; metal = chromium; percent yield = 85.0 %
Correct Answer B. Atomic mass ≈ 50.9 g·mol⁻¹; metal = vanadium; percent yield = 93.3 %
C. Atomic mass ≈ 48.0 g·mol⁻¹; metal = titanium; percent yield = 93.3 %
D. Atomic mass ≈ 55.8 g·mol⁻¹; metal = manganese; percent yield = 90.0 %
Correct Answer
B
Correct Option:
Atomic mass ≈ 50.9 g·mol⁻¹; metal = vanadium; percent yield = 93.3 %

About This Question

This is Igcse Model Questions Vol1 2024 Chemistry Question 6. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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