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Arrange the following in increasing order of boiling point:
(i) CH3CH2CH2CH2Br(ii) (CH3)3Br(iii) (CH3)2CBr
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- Suggest a reason why decane1CH3CH2CH2CH2CH2CH2CH2CH2CH2CH32 does not exhibitliquid crystalline behaviorProvide an explanation for this order of reactivity.If a compound G is reported in the literature as a pale yellow solid and when dissolved hot to purify by crystallization, the resulting solution is yellow, should the red decolorizing carbon be used before allowing the hot solution to cool? Explain
- A) Considering compounds 2a through 2l, identify: 1)one pair of geometric isomers 2)two pairs of enantiomers and 3)three pairs of identical molecules B) Give the names, including the configurations, of each of the geometric isomers and of each of the enantiomers identified in 1A and 1B. Draw the relevant structures. C) Sort compounds 2a, 2b, 2c, 2f and 2k in order of increasing solubility in water and briefly justify.About the underlying compound Select one: 1- slightly water soluble compound, used as drug of choice to treat copper toxicity as a 250 mg capsules in case of wilson’s disease as can form water soluble complex with it 2- the effectiveness of D-pencillamine over L-cysteine in treatment of metal toxicities despite the presence of identical ligand groups NH2, COOH and SH is due to its resistance to monoamino oxidase enzyme metabolism due to the lack of beta hydrogen 3- slightly water soluble compound, used as drug of choice to treat copper toxicity as a 250 mg capsules in case of wilson’s disease as can form water soluble complex with it 4- slightly water soluble compound, used as drug of choice to treat copper toxicity as a 250 mg capsules in case of wilson’s disease as can form water soluble complex with itarrange the following arenium ions in order of increasing stability
- Describe with a suitable example why the characterisation of chiral compounds is important to the pharmaceutical industry and indicate why separation of the enantiomers can prove challenging. Explain how capillary electophoresis can be used in the analysis of these compounds.Rank in order of Increasing Bronsted acidity the structures I, II and III.Draw all the resonance forms of the sigma complex for nitration of bromobenzene at the ortho, meta, and para positions. Point out why the intermediate for meta substitution is less stable than the other two.
- aminophylline is a good water soluble derivative of theophylline as ethylene diamine derivative in order to enhance its water solubility for formulation options and to enhance the bioavailability of theophylline . dose complexation phenomena involved in aminophylline preparation? how? show through drawing chemical structure as well as drawing the electronic configuration for complexationBriefly explain (in one or two sentences) the following observations:a. Unlike NH3, BiH3 is very unstable compound.b. Solid SO3 forms a trimer (SO3)3 but solid SeO3 forms a tetramer (SeO3)4.c. NH3 can be obtained from N2 and H2, but PH3 has to be prepared from PCl3 and LiAlH4Two enantiomers can be separated by the process of resolution. Describe How ?
