Q. The silver salt of a monobasic acid on ignition gave 60% of Ag. The molecular weight of the acid is
A) 37
B) 57
C) 73
D) 88
Explanation
(c)
$\frac{E}{108} = \frac{100}{60}$
Eq. wt of the silver salt $E = 108 \times \frac{100}{60} = 180$
$\therefore$ Eq. wt. of the acid $= E - 108 + 1 = 73$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.