An element which is an essential constituent of all organic compounds belongs to

Nitrogen is an essential constituent of :

The macronutrients which is an essential component of all organic compounds, yet not obtained by plants from soil is

(v) An essential constituent of analgam is :

Essential component of all living organisms

Carbohydrate which is an essential constituent of plants cells is

Which gas is essential constituent of almost all fuel gases?

Which element is constituent of biotin?

A macronutrient which is component of all organic compounds but is not obtained from soil is

What is an essential element ?

What is an essential element ?