Http://i64.tinypic.com/2gxmtyf.jpg - Question 18 why is answer (b)..?

By using a burette and pipette, we can prepare a soluble salt by neutralization of an acid solution with an alkali solution.

A. False
Both iron(II) oxide and iron(II) hydroxide are insoluble in water. There is no alkali solution available.

B. True
By using a burette and pipette, we can prepare the soluble salt of potassium nitrate by neutralization of nitric acid solution with potassium hydroxide solution.

C. False
Both magnesium oxide and magnesium hydroxide are insoluble in water. There is no alkali solution available.

D. False
We do not use a burette and pipette to prepare an insoluble salt such as calcium sulfate.

...... The answer is : B. potassium nitrate