In which of the following does aluminum becom | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Aluminum becomes passive in concentrated oxidizing acids because it forms a thin,protective,non-porous layer of oxide $(Al_2O_3)$ on its surface.

Vedclass · Accepted Answer

All of these

Vedclass · Answer

(D) Aluminum becomes passive in concentrated oxidizing acids because it forms a thin,protective,non-porous layer of oxide $(Al_2O_3)$ on its surface. This layer prevents further reaction of the metal with the acid. Concentrated $HNO_3$,$H_2CrO_4$,and $HClO_4$ are all strong oxidizing agents that cause this passivation.

In which of the following does aluminum become passive?

Similar Questions

The reaction of $NO$ with $N_2O_4$ at $250 \ K$ gives :

In group $15$ of the periodic table,nitrogen forms only a trihalide,but other elements form pentahalides also. The reason is:

Which among the following group $15$ elements does not exhibit allotropy?

Ammonia reacts with an excess of chlorine to form:

Which element does not form complexes?

Vedclass Test Series

Exam Paper Generator

Online Exam Module