Neco Model Questions Vol1 2025 Chemistry Question 4

Practice objective / multiple choice question 4 from the 2025 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2025 Chemistry Objective / Multiple Choice Medium Difficulty
Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • objective

The reaction \(\mathrm{2Al + 6HCl \rightarrow 2AlCl_{3} + 3H_{2}}\) is carried out using \(5.0\ \text{g}\) of aluminium and \(10.0\ \text{g}\) of hydrochloric acid. Calculate the theoretical mass of hydrogen gas produced and the percent yield if \(0.20\ \text{g}\) of hydrogen is actually collected.

Answer Options

A. 0.300 g H₂ (theoretical); 66.7 % yield
Correct Answer B. 0.276 g H₂ (theoretical); 72.5 % yield
C. 0.260 g H₂ (theoretical); 76.9 % yield
D. 0.250 g H₂ (theoretical); 80.0 % yield
Correct Answer
B
Correct Option:
0.276 g H₂ (theoretical); 72.5 % yield

About This Question

This is Neco Model Questions Vol1 2025 Chemistry Question 4. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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