Question

Which among the following are trace elements?

• A. Nitrogen, phosphorus, molybdenum and copper
• B. Manganese, iron, molybdenum and copper
• C. Cobalt, selenium, sodium and silicon
• D. Nitrogen, carbon, oxygen and phosphorus

Answer 1

The correct option is B Manganese, iron, molybdenum and copper

Plants require various elements for their normal and proper growth.
Certain elements are required in large amounts and are called macronutrients.
N,P,C,O are macronutrients.
Certain elements are required in small amounts and are called micronutrients.
Mo, Cu, Mn, Fe are micronutrients.
Certain elements are required only by certain higher plants and these are called beneficial elements. Na, Se, Co, Si are beneficial elements.