In the electrochemical series, a metal higher in the series will
Correct answer: A. displace a metal lower in the series from its salt solution
- A. displace a metal lower in the series from its salt solution
- B. be displaced by a metal lower in the series
- C. never react with acids
- D. always be a poor conductor
Explanation
A more reactive metal gives up electrons more readily, so it reduces the ions of a less reactive metal and takes their place in solution, which is why zinc displaces copper from copper sulphate but copper cannot displace zinc. The same order predicts which metals react with dilute acid to release hydrogen, namely those above hydrogen in the series. Displacement reactions are always redox reactions.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Redox Reactions
Redox reactions involve oxidation and reduction occurring together, with electrons transferred between species or oxidation numbers changing. The topic covers assigning oxidation states, identifying oxidizing and reducing agents, balancing redox equations by oxidation number or half-reaction methods, and connecting chemical changes with galvanic and electrolytic cells.
Practise Electrochemistry
696 free Electrochemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Redox Reactions questions
Which of the following is NOT a redox reaction?
During the electrolysis of molten sodium chloride, sodium metal is produced at the cathode because sodium ions
The function of the salt bridge in a galvanic cell is to
Which of the following situations most clearly demonstrates a key characteristic of a redox reaction?
Which of the following produces black spots when it comes in contact with organic substances such as skin and cellulose?
Which of the following is used in photography?