Q. Dipping iron article into a strongly alkaline solution of sodium phosphate
A) Does not affect the article
B) Forms ${Fe}_{2}O_{3}.{xH}_{2}O$ on the surface
C) Forms iron phosphate film
D) Forms ferric hydroxide
Explanation
(a)
In electrochemical series, iron is placed below sodium, so it cannot displace sodium from its salt solution. Hence, no reaction takes place.
$Fe\ + \ {Na}_{3}{PO}_{4}\ \rightarrow \ No\ reaction$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.