Properties of fertilisers

1

Which of these is not an essential plant nutrient?

2

Which of the following is a natural fertiliser?

3

What is the Haber process used to form?

4

Which of the following is a property of ammonia gas?

5

What are the reactants in the Haber Process?

6

Which of the following is not a reason that nitrate compounds make good fertilisers?

7

How is the Haber process made more economical?

8

What is the percentage of nitrogen in the fertiliser Urea (CO{(N{H_2})_2}) given the relative atomic mass of hydrogen is 1, carbon is 12, nitrogen is 14, and oxygen is 16?

9

The compound ammonium sulphate (NH_{4})_{2}SO_{4} is used as a fertiliser.

Given the relative atomic mass of hydrogen is 1, nitrogen is 14, oxygen is 16 and sulphur is 32, what is the percentage of ammonium sulphate that is nitrogen?

10

Ammonium phosphate ({(N{H_4})_3}P{O_4}) is commonly used as a fertiliser.

Given the relative atomic mass of hydrogen is 1, nitrogen is 14, phosphorus is 31 and oxygen is 16, what is the percentage of ammonium phosphate that is phosphorus?