Assertion :- Moderate decrease of micronutrients causes the deficiency symptoms and moderate increase causes toxicity.
Reason:- There is a narrow range of concentration at which micronutrients are optimum.

There is a narrow range of concentration at which the elements are optimum. This statement is concerned with :-

(a) Moderate decrease of increase on micronutrients causes deficiency and toxicaity symptoms respectively. (b) Excess of manganese causes toxicity of iron calcium and molybdenum. (c ) A macronutrients said to be toxic when present below a critical concentration.

(a) Moderate decrease of increase on micronutrients causes deficiency and toxicaity symptoms respectively. (b) Excess of manganese causes toxicity of iron calcium and molybdenum. (c ) A macronutrients said to be toxic when present below a critical concentration.

Mn in higher concentration produces micronutrient toxicity and it can cause

Role OF minerals | | Deficiency symptoms OF minerals | | Toxicity OF micronutrients | | Method OF mineral absorption

Assertion A: The molar conductance of weak electrolyte is low as compared to that of strong electrolytes at moderate concentrations. Reason R: Weak electrolytes at moderate concentrations dissociate to a much greater extent as compared to strong electrolytes.