Suppose, you are given a substance and told it was either lead nitrate, lead carbonate, potassium nitrate or potassium carbonate. Prepare a report on how to find out which of these four substances it was. Justify your report with appropriate tests. If the substance is lead carbonate, suggest a method to prepare the salt and describe its preparation. Explain the principles involved in its preparation.
Tugasan ini sebenarnya kami pernah buat sebelum ini cuma mungkin soalannya diubah-ubah setiap semester. Namun kehendak soalan sebenarnya adalah hampir sama setiap semester.