Igcse Model Questions Vol1 2019 Chemistry Question 12

Practice objective / multiple choice question 12 from the 2019 Igcse Model Questions Vol1 Chemistry examination.

Igcse Model Questions Vol1 2019 Chemistry Objective / Multiple Choice Medium Difficulty
Question 12 IGCSE_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • objective

When 2.00 g of magnesium reacts with excess hydrochloric acid according to \( \mathrm{Mg + 2HCl -> MgCl_2 + H_2} \), the hydrogen gas is collected over water at 25 °C and 750 mmHg. The measured volume of gas is 0.850 L. Calculate the percentage yield of hydrogen relative to the theoretical yield.

Answer Options

A. 62.5%
B. 55.2%
Correct Answer C. 40.4%
D. 28.7%
Correct Answer
C
Correct Option:
40.4%

About This Question

This is Igcse Model Questions Vol1 2019 Chemistry Question 12. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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