Dorothy798idn
Answered

IDNLearn.com offers a unique blend of expert answers and community-driven knowledge. Get accurate and comprehensive answers from our network of experienced professionals.

Given the redox reaction:
Cr3+ + Al-->Cr + Al3+
As the reaction takes place, there is a transfer of
(1) electrons from Al to Cr3+
(2) electrons from Cr3+ to Al
(3) protons from Al to Cr3+
(4) protons from Cr3+ to Al

Sagot :

Lulu1991idn
In this reaction, Al lose electrons and change to Al3+. Cr3+ gain electrons and change to Cr. So the electrons transfer from Al to Cr3+. Protons will not transfer in a chemical reaction. So the answer is (1).

Answer: (1) electrons from Al to [tex]Cr^{3+}[/tex]

Explanation: Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

For the given reaction:

[tex]Cr^{3+}+Al\rightarrow Cr+Al^{3+}[/tex]

The oxidation state of chromium reduces from +3 to 0, it is getting reduced and gains electrons. The oxidation state of aluminium increases from 0 to +3. Thus, it is getting oxidized and it loses electrons. Thus electrons are transferred from [tex]Al[/tex] to [tex]Cr^{3+}[/tex]

Thank you for being part of this discussion. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. Thank you for choosing IDNLearn.com. We’re here to provide reliable answers, so please visit us again for more solutions.