Single Choice

A salt gives bright red colour to the flame. This colour indicates the presence of

A$$Ba^{2+}$$
B$$Sr^{2+}$$
Correct Answer
C$$Ca^{2+}$$
D$$Cr^{3+}$$

Solution

$$Sr^{2+}$$ give bright red colour to the flame. The colour is due to the excitation of electrons by the thermal energy, which is then followed by de-excitation of electron to ground state along with liberation of light in the visible range.

SIMILAR QUESTIONS

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Deep pink colour is given to flame by the salts of

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Calcium salts give which colour when put in a flame?

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Which gives a white precipitate with a solution of $$AgNO_3$$, a white precipitate with dil. $$H_2SO_4,$$ and a green flame test?

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Which of the following cation(s) will turn blue in oxidizing flame?

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State the inference drawn from the following observations: On carrying out the flame test with a salt $$P$$ a brick red flame was obtained. What is the cation in $$P$$?

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