Which of the following are used as both fertilizer as well as explosive 1 Calcium sulphate 2 Ammoniu...........

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Which of the following are used as both fertilizer as well as explosive ?

1.Calcium sulphate

2.Ammonium nitrate

3.Potassium as used in NPK fertilizers

Select the correct answer using the code given below.

2 only

1, 2 and 3

1 and 2 only

1 and 3 only

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Explanation:

Ammonium nitrate, or NH4-NO3, is frequently added to improve a fertilizer's nitrogen content. It's relatively stable under most conditions and is inexpensive to manufacture
But ammonium nitrate has a potentially lethal downside: If it comes into contact with an open flame or other ignition source, it explodes violently. The explosive force occurs when solid ammonium nitrate decomposes very rapidly into two gases, nitrous oxide and water vapor.
Statement 1: The main use of calcium sulfate is to produce plaster of Paris and stucco. These applications exploit the fact that calcium sulfate which has been powdered and calcined forms a moldable paste upon hydration and hardens as crystalline calcium sulfate dihydrate.