Comments on: O Level Chemistry: Redox Reaction Question 4

By: sean

sean — Mon, 03 Mar 2008 16:18:36 +0000

Hi Jennifer,

It is part of the learning curve. It is alrigt to make mistakes now.
Correcting them will do you well for your GCE O Level examinations.

Cheers
Sean

Jen — Fri, 29 Feb 2008 13:47:26 +0000

Yes sir! i fully understand my mistake now. Thank you so much.

Best regards,
Jennifer

sean — Sun, 17 Feb 2008 17:50:08 +0000

When a mixture of iron (II) oxide and carbon is heated, iron(II) oxide is
reduced to iron and carbon is oxidized to carbon dioxide. The equation as:

FeO(s) + C(s) —> 2Fe(s) + CO2(g)

Carbon is oxidized. Thus (B) is Incorrect.

Carbon is acting as the reducing agent, thus (C) is Incorrect.

Carbon Dioxide is the end-product, not Carbon monoxide, thus (D) is Incorrect.

Fe2+ has indeed gained 2 electrons (-ve charges) to form Fe(s) metal.
Therefore, correct answer should be (A).

Hope this helps.
Sean

Note:
Jennifer – The answer that you provided in the question sheet (B) is Incorrect. Pls Note.