p-Block elementsHard

Question

Aluminium is more reactive than iron. But aluminium is less easily corroded than iron because:

Options

A.aluminium is a noble metal
B.oxygen forms a protective oxide layer on aluminium surface
C.iron unergoes reaction easily with water
D.iron forms both mono and divalent ions

Solution

2Al + 3H2O →  Al2O3 + 3H2O (slow reaction)
Al2O3 forms protecting oxide layer on Al surface

Create a free account to view solution

View Solution Free
Topic: p-Block elements·Practice all p-Block elements questions

More p-Block elements Questions

Which of the following product(s) is/are obtained when Cl2O6 reacts with KOH ?...N2O (laughing gas) finds use in the following except :...Borax on heating with cobalt oxide forms a blue bead of :...A gas which exists in three allotropic forms a, b and g is...Among the following molecules, (i) XeO3 (ii) XeOF4 (iii) XeF6 those having same number of lone pairs on Xe are :...