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Green chem 1
Question | Answer |
---|---|
THE C=O BOND ABSORBS AT AROUND... | 1700CM-1.BUT THE VALUE DEPENDS ON THE OTHER ATOMS ATTACHED TO THE C=O. |
OTHER TYPES OF BONDS ABSORB AT... | DOFF FREQUENCIES BUT THE VALUE DEPENDS ON THE NEIGHBOURING ATOMS GROUPS. |
THE REGIONS BELOW ABSORB 1300CM-1 CALLED... | E.G. THE FINGERPRINT REGION LIST SHOWS A COMPLEX SERIES OF PEAKS AND DEPENDS ON THE EXACT COMPOUND BEING ANALYSED. |
JUST AS FINGERPRINTS CAN BE MATCHED BY COMPUTER TO GIVE UNIQUE IDENTIFY SO... | COMPUTER ANALYSIS OF FINGERPRINT REGION CAN BE USED TO IDENTIFY A PURE UNKNOWN COMPOUND. |
THE INFRARED SPECTRUM FOR PRONA-2-OL... | THE BROAD PEAK AT 3330CM-1 ID DUE TO HYDROGEN BONDED O-H. |
THE PEAK AT 2970 SM-1 IS DUE TO THE C-H BOND. | THE PEAK AT 1389CM-1 IS DUE TO THE C-C BOND. |
THE INFRARED SPECTRUM FOR METHYBENZENE AT 300CM-1 , 2900CM-1 AND 1500CM—1 ... | . ANSWER THE PEAK AT 300CM-1 IS DUE TO THE STRETCHING OF THE AROMATIC C-H BOND. THE PEAK AT 2900CM-1 IS DUE TO THE STRETCHING OF THE C-H BOND IN THE CH3 GROUP. THE PEAK AT 1500CM-1 IS DUE TO THE AROMATIC C=C BOND. |
INFRARED SPECTRUM FOR ETHANOIC ACID... | THE PEAKS AT 300OSM-1 IS DUE TO THE O=H BOND IN THE CARBOXYLIC ACID GROUP. THE PEAK AT THE 1700CM-1 IS DUE TO THE C=O BOND IN THE CARBOXYLIC ACID GROUP . THE PEAK AT THE 1400CM-1 IS DUE TO THE C-C BOND. |
THE PEAK AT 300CM-1 IS VERY BROAD BECAUSE.... | OF THE EFFECTS OF INTERMOLECULAR HYDROGEN BONDING. |
THE ABSORPTIONS BY THE C-H BONDS IS... | OFTEN MASKED BY THE BROAD PEAK DUE TO THE O-H BOND AT SIMILAR FREQUENCIES. |
INFRARED SPECTROSCOPY CAN BE USED TO SHOW ... | WHERE A REACTION HAS TAKEN PACE. |
(CON)THE SPECTRUM PRODUCT COMPARED ORIGINAL REACTANT. | E.G. IF AN ALCOHOL IS BEING OXIDISED TO ALDEHYDE OR KETONE , |
(CON)THE PEAK 3200 BAD 3600CM-1 CAUSED BY .... | THE STRETCHING OF THE O-H BOND SHOULD NOT BE FOUND IN THE SPECTRUM OF THE PRODUCT. |
(CON)BUT A PEAK BETWEEN 1700 AND 1740CM-1 DUE TO... | THE C=0 BOND SHOULD BE CLEARLY VISIBLE. |
IF BUTAN-2-OL IS HEATED WITH AN OXIDISING GENT, | |
BUTANONE SHOULD BE PRODUCED BY ... | COMPARING THE SPECTRA IN THE LIBRARY CAN BE SEEN IF THE OXIDATION TOOK PLACE. |