(a(i))[2]
Describe the procedure for carrying out a flame test on a solid.
(a(ii))[1]
A blue-green flame is seen by the student. Identify the cation in A.
(b(i))[5]
The student adds dilute hydrochloric acid to A. Aqueous solution C and a colourless gas are produced. Describe the observations the student sees. Describe the chemical test and the positive result used to identify the gas produced.
(b(ii))[1]
Explain how the student can tell that the reaction has finished.
(c)[4]
Explain how aqueous ammonia can be used to confirm the metal ion present in C. Include the observations you would expect.
(d)[1]
The student carries out tests on B. The results are given in Table 3.1. Identify the anion in B.