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  • Which among the following Alkaline earth metal(s) do not give colour during flame test? Be Mg</l

Which among the following Alkaline earth metal(s) do not give colour during flame test?

  1. Be
  2. Mg
  3. Ca
  4. Sr
Option: 1

A and B only


Option: 2

A and C only


Option: 3

A, B and C only


Option: 4

None of the above.


Answers (1)

best_answer

Beryllium (Be) and Magnesium (Mg) do not give flame test. Due to their small size, they strongly bind their electrons. Thus, they have high ionization enthalpies and the thermal energy of flame is not sufficient to excite their electrons.

Posted by

Pankaj

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