Which of the following metals is oxidized by calcium ions?
Oxidation is the loss of electron and reduction is the gain of an electron. In a chemical reaction, one of the atoms get oxidized and the other gets reduced. The oxidized atom loses the electron and the reduced atom gains.
Answer and Explanation:
Following is the reactivity series of metals:
potassium (high reactive) > sodium > calcium > magnesium > aluminum > zinc > iron > tin > lead > copper > silver > gold > platinum (least reactive).
As per the reactive series, potassium is the most reactive of the given options and calcium is close to it. More reactive a metal, more is the tendency to form a cation (positive ion) by the loss of an electron. The tendency of the potassium to form a positive ion is more than any in the given series and Zinc, iron and lead are least in the reactivity.
Thus, potassium gets oxidized by the calcium ions.
Become a member and unlock all Study Answers
Try it risk-free for 30 daysTry it risk-free
Ask a question
Our experts can answer your tough homework and study questions.Ask a question Ask a question
Learn more about this topic:
from General Studies Science: Help & ReviewChapter 27 / Lesson 45