For ‘invert sugar’, the total number of correct statement(s) is(are)(Given : specific rotations of (+) -sucrose, (+)-maltose, L-(-)-glucose and L-(+) fructose in aqueous solution are + 66°, +140°, –52° and +92°, respectively)(I) ‘invert sugar’ is prepared by acid catalyzed hydrolysis of maltose.(II) ‘invert sugar’ is an equimolar mixture of D-(+)-glucose and D-(-)-fructose.(III) specific rotation of ‘invert sugar’ is –20°.(IV) on reaction with Br2 water, ‘invert sugar’ forms saccharic acid as one of the products.
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Detailed Solution
Invert sugar is an equimolar mixture of D-(+) glucose and D(–) glucose.Specific rotation of invert sugar =-92°+52°2=-20°D-glucose on oxidation with Br2-water producesgluconic acid and not saccharic acid.
For ‘invert sugar’, the total number of correct statement(s) is(are)(Given : specific rotations of (+) -sucrose, (+)-maltose, L-(-)-glucose and L-(+) fructose in aqueous solution are + 66°, +140°, –52° and +92°, respectively)(I) ‘invert sugar’ is prepared by acid catalyzed hydrolysis of maltose.(II) ‘invert sugar’ is an equimolar mixture of D-(+)-glucose and D-(-)-fructose.(III) specific rotation of ‘invert sugar’ is –20°.(IV) on reaction with Br2 water, ‘invert sugar’ forms saccharic acid as one of the products.