question_answer

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 \[+\text{ }66{}^\circ ,\,\,\,+140{}^\circ ,\,\,\,-\,\,52{}^\circ \] and\[+\,92{}^\circ \], 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 \[-20{}^\circ .\]

(IV) on reaction with \[B{{r}_{2}}\] water, ?invert sugar? forms saccharic acid as one of the products.

 

Answer:

2