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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Botany
Chapter
Mineral Nutrition

NTA Abhyas 2020 · Botany · Mineral Nutrition

If plant material is dried and burnt in a crucible, the residue...

If plant material is dried and burnt in a crucible, the residue would contain

Options

  1. AOxides and carbonates of about ten elements
  2. BCarbon and phosphorus
  3. CNitrates and sulphates only
  4. DOxides and carbonates of Ca& and Mg only

Correct answer

A. Oxides and carbonates of about ten elements

Step-by-step solution

If dried plant parts are heated in silica crucible at 600°C all organic substances vaporize and the remaining plant ash contains only inorganic substances or essential mineral elements.& The essential elements are C, H. O, N, P, K, S, Mg, Ca, Fe, Mo, Mn, Ni, Zn, B, Cl, Cu.
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