In an experiment, bubbles formed and the container became cold. Which is the most cautious conclusion based on these observations?
Answer and explanation
Correct answer: A gas may have formed, and the process may have absorbed heat.
Bubbles may indicate the formation of a gas, and a cold container may indicate absorption of heat. Therefore, option A correctly uses cautious wording such as “may.” The observations alone cannot establish a specific change such as rusting with certainty.
Frequently asked questions
What is the correct answer to this question?
A gas may have formed, and the process may have absorbed heat.
Why is this the correct answer?
Bubbles may indicate the formation of a gas, and a cold container may indicate absorption of heat. Therefore, option A correctly uses cautious wording such as “may.” The observations alone cannot establish a specific change such as rusting with certainty.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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