Ammonium Nitrate

Consider the following with reference to ammonium nitrate:

  1. In its pure form, ammonium nitrate (NH4NO3) is a yellow, crystalline chemical which is insoluble in water.
  2. It is also the main component of the explosive composition known as ANFO — ammonium nitrate fuel oil.
  3. Ammonium nitrate is used in some instant cold packs, as its dissolution in water is highly endothermic.

Which of the statement(s) given above is/are correct? Choose the correct answer from the codes given below:

1 and 2
2 and 3
1 and 3
1, 2 and 3