Substance X has one cation. Two tests are carried out on aqueous X. Test 1: flame test. Test 2: addition of aqueous sodium hydroxide first dropwise and then in excess. Which row gives a possible set of observations for these tests?
- Atest 1: yellow flame; test 2: white ppt., insoluble in excess
- Btest 1: blue-green flame; test 2: light blue ppt., insoluble in excess
- Ctest 1: light green flame; test 2: green ppt., soluble in excess
- Dtest 1: red flame; test 2: red-brown ppt., insoluble in excess