A. Rusting is a reduction process
B. Rusting of iron takes place in the presence of oxygen and moisture
C. the rust formed is reddish-brown
D. the major constituent of rust is hydrated iron (lll) oxide
E. rusting is similar to burning
Correct Answer:
Option A – Rusting is a reduction process
![A rectangular piece of iron measuring 4 cm by 3 cm at 20°C is heated until its temperature increases by 100°C. Calculate the new area of the metal. [Linear expansivity of iron is 1.2 x 10^−5 K¯¹] past-questions-and-answers](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers-150x150.jpg)