JEE Main Chemistry question
Amongst the following s-block elements, how many will give a characteristic colour in the flame test? Li, Na, K, Be, Mg, Ca, Sr, Ba
Answer: 6
Solution
Li gives crimson, Na gives golden-yellow, K gives violet, Ca gives brick-red, Sr gives crimson, and Ba gives apple-green flame colours — six elements in total. Be and Mg do
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