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Q. Which of the following radicals, gives the apple green flame during flame test?

VMMC MedicalVMMC Medical 2005

Solution:

When paste of salt in cone. HCl, is burnt on a spetchula, the following coloured flame appears for different radicals. $ \text{B}{{\text{a}}^{2+}}- $ apple green $ \text{S}{{\text{r}}^{\text{2+}}}- $ crimson red $ \text{C}{{\text{a}}^{\text{2+}}}- $ brick red $ \text{N}{{\text{a}}^{\text{+}}}- $ golden yellow