Q. Which of the following is not considered as a trace element (micronutrient) in the plant?
A) $Mo\ O_{2}^{- 2}$
B) $Cu^{+ 2}$
C) $Mn^{+ 2}$
D) $K^{+}$
Explanation
The essential elements, which are required in traces (i.e.,) mg/g of dry matter) by the plants are called micronutrients or trace elements. They are six in number Zn, Mn, B, Cu, Mo, and Cl
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.