1) a) When CO becomes coordinated to BH3, its stretching frequency increases, but when CO is coordinated to Ni(CO)3, its stretching frequency decreases. Explain. b) Does the stretching frequency of CO increase of decrease when (explain too) i) L of LM-CO becomes more electron withdrawing. ii) CO of L M-CO becomes coordinated to a Lewis acid, A, to become LÂM-CO-A 18

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.