JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Which pair of the following chlorides do not impart colour to the flame? [Kerala CEE 2008]

(A) and
(B) and Correct
(C) and
(D) and

Answer: (B)

Solution

Among the alkaline earth metals, Be and Mg have such small ionic size that their electrons are too strongly bound to be excited by the energy available in a flame, so neither gives a flame colour. , and (appearing

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Question ID VK-137633