Draw the structure of the aldol reaction product formed when2-methylbutanal is treated with cold aqueous base. Due to the coldtemperature of the reaction, elimination of the ? An organic compound with molecular formula C9H10O forms 2, 4, – DNP derivative, reduces Tollens’ reagent and undergoes Cannizzaro’s reaction. On vigorous oxidation it gives 1, 2-benzene-di- carboxylic acid. An organic compound A has the molecular formula C8H16O2. It gets hydrolysed with dilute sulphuric acid and gives a carboxylic acid B and an alcohol C.
H2S, a toxic gas with rotten egg like smell, is used for the qualitative analysis. If the solubility of H2S in water at STP is 0.195 m, calculate Henry’s law constant. On adding NaHCO3, CH3COOH produces brisk effervescence of CO2 gas whereas phenol does not. Because of electron withdrawing nature of -NO2 group.
Aldehydes are oxidized by Tollen’s reagent whereas ketones are not. Draw the structures of the aldol addition and condensation products of 3-methylbutanal. The Cannizzaro reaction produces a carboxylic acid and alcohol as a non-enolizable aldehyde self-reacts within a strong base. Explore the mechanism and steps in this reaction through examples. 3) Deuterium oxide is a form of water where the hydrogens have been replaced by deuteriums. For the following LiAlH4 reduction the water typically used has been replaced by deuterium oxide.
Suggest the most important type of intermolecular attractive interaction in the following pairs. N-hexane and n-octane I2 and CCl4 NaClO4 and water methanol and acetone acetonitrile flashlight app for samsung s5 and acetone . Write the name and structure of one of the common initiators used in free radical addition polymerisation. Give an example of the reaction in each case.
It reacts with carbonyl compounds to give a coloured precipitate. These precipitates have a sharp melting point. The melting points of the precipitates confirm the carbonyl compounds. Aldehydes, ketones and alcohols are very common features in biological molecules.
4-nitrobenzoic acid is more acidic than benzoic acid. On adding NaHCO,, benzoic acid produces brisk effervescence of C02 gas whereas ethylbenzoate does not. CH3CHO is more reactive than CH3COCH3 towards reaction with HCN. It gives +ve iodoform test, therefore it is methyl ketone.
The enolatae formed attacks on the carbonyl group of next aldehyde and forms a product called Aldol. Such reactions are called as Aldol Condensation. Because -COOH group of carboxylic acids is capable to do intermolecular hydrogen bonding forming a dimer while alcohols, aldehydes and ketones can not. Draw the structure of the product formed when 2-methylbutanal is treated with cold aqueous base. Two practical sources of hydride-like reactivity are the complex metal hydrides lithium aluminium hydride and sodium borohydride .