MCQEasy1 mark
1
Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)
40 cm3 of methane (CH₄) is reacted with 60 cm3 of oxygen. The equation for the reaction is given below: CH₄ + 2O₂ ⟶ CO₂ + 2H₂O All volumes are measured at room temperature. What is the total volume of the gases remaining at the end of the reaction?
Topic: Organic chemistry: structure, nomenclature and reactions
Previous-year question practice database
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Answer
Exam answer
(b) 40 cm³.
Explanation
60 cm³ O₂ reacts with 30 cm³ CH₄, leaving 10 cm³ CH₄ and forming 30 cm³ CO₂; total gas = 40 cm³.
In words
40 cm³.
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