Q. Molarity of a given orthophosphoric acid solution is 3 M. It’s normality is
A) 9N
B) 0.3 N
C) 3 N
D) 1 N
Explanation
(a)
Orthophosphoric acid ($H_{3}{PO}_{4}$) is a tribasic acid.
$\because\$Normality = molarity $\times$ basicity
$\therefore\$ Normality = 3 M $\times \$3 = 9 N
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.