Conc. HCI is added to a metal salt and then subjected to flame test on platinum wire. It Imparts crimson color to the flame. Which metal salt it is?
Correct answer: C. Strontium
- A. Sodium
- B. Potassium
- C. Strontium
- D. Calcium
Explanation
The correct answer is Strontium because it imparts a crimson red color to the flame when subjected to a flame test. This is a key characteristic of strontium ions. Sodium, while common in flame tests, gives a bright yellow flame. Potassium gives a lilac color, and calcium produces an orange-red flame, neither of which matches the crimson color described in the question.
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About Reactions of Group II Elements
Group II reactions cover the behaviour of beryllium, magnesium, calcium, strontium and barium with water, oxygen, halogens, acids and nitrogen. The trends in reactivity, hydroxide solubility and basicity, along with the thermal decomposition of carbonates and nitrates, depend on increasing atomic size down the group.
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