Q. Which element is not present in Nessler’s reagent?
A) Mercury
B) Potassium
C) Iodine
D) Oxygen
Explanation
The correct answer is Option D: Oxygen.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.