Which group of element is not essential for a normal plant [CPMT 1975, – McqOptions

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1.	Which group of element is not essential for a normal plant [CPMT 1975, 77, 84; DPMT 1975, 84; AFMC 1984; JIPMER 1985]
A.	Potassium, calcium, magnesium
B.	Iron, zinc, manganese, boron
C.	Lead, nickel, iodine, sodium
D.	Magnesium, iron, molybdenum
Answer» D. Magnesium, iron, molybdenum

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