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Ionic Radii and Ionisation Enthalpy (Group 2)

Which of the ...

Question

Which of the following alkaline earth metal doesn’t impart any colour to the Bunsen flame?

A

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B

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C

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D

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Solution

The correct option is A
$M g^{2 ⊖} a n d B e^{2 ⊖}$ salts do not impart colour to Bunsen flame due to small size and large
amount of energy required to excite their electrons.

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