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explain the methodology for seliwanoff testtake 5 ml of seliwanoffs reagent in a test tube add 5-6 drops of the glucose solution and heat the mixture
define reagents for seliwanoffs test- sugar solutions of glucose fructose galactose lactose maltose sucrose and starch- resorcinol in dilute
define seliwanoffs test or resorcinol hydrochloric acid reactionseliwanoffs test is specific test for ketonic groups and therefore is positive for
define observation or inference for barfoed test1 reddish brown precipitate is seen on the sides and bottom of the tube the precipitate of the sides
define reagent required and methodology for barfoed testreagents- solutions of glucose fructose galactose lactose maltose sucrose and starch-
what is barfoeds test and its principlethis test is a specific test for monosaccharidesprinciplethis test is also a copper reduction test but differs
define observation or inference for picric acid test1 a mahogany red colour will be seen the mahogany red colour indicates the presence of reducing
define reagent required and methodology for picric acid testreagents - sugar solutions of glucose fructose galactose lactose maltose sucrose and
explain about the picric acid testthis test is answered by all reducing sugars with a free aldehyde or ketone groups monosaccharides possess a free
define observation for benedict test - carbohydratesan insoluble reddish brown precipitate of cuprous oxide will be obtained this is similar to
define reagents required and methodology for benedict testreagents required- sugar solutions of glucose fructose galactose maltose lactiose sucrose
what is benedicts test and its principlethis test is answered by all reducing sugars with a free aldehyde or ketone groups monosaccharides possess a
define observation or inference for fehlings testan insoluble reddish brown precipitate of cuprous oxide will be obtained the reddish brown
define reagents required and methodology for fehlings test- sugar solutions of glucose fructose galactose lactose maltose sucrose starch- fehling a
define principle of fehling test - reduction testssugars that possess a free or potentially free those that can be converted to free aldehyde or
what is fehlings test - reduction teststhis test is answered by all reducing sugars which possess a free aldehyde or ketone group all monosaccharides
explain about the reduction tests - carbohydratesthese are a group of tests answered by reducing sugars since we have already discussed reducing
define the iodine test - carbohydratesthis test is given by polysaccharides and is not given by monosaccharides or disaccharidesprincipleiodine forms
explain the process of solubility testthis test is given by all monosaccharides and disaccharides polysaccharides are not soluble in cold
explain about the qualitative tests for carbohydratesthis section will familiarize you with simple techniques and tests to identify carbohydrates in
what are polysaccharidespolymers of simple sugars are known as polysaccharides several polysaccharides unlike sugars are insoluble in water dietary
explain the maltose and cellobiosemaltose consists of two a-d-glucose molecules with the alpha bond at carbon 1 of one molecule attached to the
define about the lactoselactose has a molecular structure consisting of galactose and glucose it is of interest because it is associated with lactose
define about the sucrose and trehalosesucrose also called saccharose is ordinary table sugar refined from sugar cane or sugar beetstrehalose has two
q what are disaccharidesalthough theoretically disaccharides could be made up of two trioses tetroses pentoses but all naturally occurring