Beryllium is placed above magnesium in Group II. Beryllium dust, therefore, when added to an MgCl₂ solution will:
Correct answer: A. Have no effect
- A. Have no effect
- B. Precipitate Mg metal
- C. Precipitate MgO
- D. Lead to dissolution of Be metal
Explanation
Reactivity in alkali earth metals generally increases down the group. Therefore, Magnesium is more reactive than Beryllium. A less reactive metal cannot displace a more reactive metal from its salt solution, so no reaction will occur.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electrochemistry
Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
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 Electrochemistry questions
The unit of cell potential is:
Two half-cells have reduction potentials of -0.76 V and -0.13 V respectively. A galvanic cell is made from these two half-cells. Which of the following statements is correct?
During electrolysis, when the mass of product produced (m) is plotted against the electric charge (Q) in faraday's law, which of the following plots is correct?
In a Daniell cell, zinc electrode acts as:
Which of the following is a strong electrolyte?
If E°cell is positive, the reaction is: