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Doctors Medicines MCQs Q&A

 Arrange the following order of the property indicated: 

(a). F, Cl, Br and I (negative electron gain enthalpy) 

(b). Mg, Al, Si and Na (ionization enthalpy) 

(c). C, N, O and F (second ionization enthalpy)

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(a). I (b). Na (c). C

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