WAEC Chemistry 2023 Objective — Question 41
Question 41 of 50 from the West African Examinations Council (WAEC) Chemistry 2023 Objective paper, with the correct answer and a full explanation.
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Dilute trioxonitrate (V) acid does not produce hydrogen when it reacts with metals because
- A. it is a strong oxidizing agentCorrect
- B. it reacts with the product
- C. there is no visible reaction
- D. it is highly corrosive
Explanation
HNO3 does not liberate hydrogen gas when it reacts with metals (unlike other acids) because it is a strong oxidizing agent — any hydrogen formed is immediately oxidized to water.
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