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Which of the following order is/are CORR...

Which of the following order is/are CORRECT?

A

`BeF_(2)ltBeCl_(2)ltBeBr_(2)` (Lewis acidic character)

B

`NO_(2)^(+)gtNO_(2)gtNO_(3)^(-)` (Bond angle)

C

`:CH_(2)lt:CF_(2)lt:"CC"l_(2)` (Stability of Carbene)

D

`ClO_(2)^(+)ltClO_(4)^(-)ltClO^(-)` (Bond length)

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