Pick out the wrong statement?

Fertilizer Technology 25/11/2020

A. All the nitrogenous fertilisers are not soluble in water
B. A straight fertiliser contains only one nutrient
C. Calcium cyanamide is used as weed killer in onion fields
D. The phosphorous nutrient makes the plant stem stronger and increases its branches

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    CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in _________________?
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