Barium ions can be identified by their flame colour.
Which of the following should be used for a flame test on barium carbonate?
☐ | A | iron wire and water | |
☐ | B | iron wire and concentrated hydrochloric acid | |
☐ | C | nichrome wire and water | |
☐ | D | nichrome wire and concentrated hydrochloric acid |
What colour do barium ions give in a flame test?
☐ | A | green | |
☐ | B | lilac | |
☐ | C | red | |
☐ | D | yellow |
A flame test was carried out on a mixture of barium chloride and magnesium chloride.
How does the presence of magnesium ions affect the appearance of the flame colour of barium ions?
☐ | A | the colour is more intense | |
☐ | B | a bright white colour completely masks the barium colour | |
☐ | C | there is no change | |
☐ | D | the barium colour is decreased by the white magnesium flame colour |
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