Question

explain the labrotory method for prepapation of glucose

Answer 1

Glucose can be prepared in thelaboratory by boiling sucrose (cane sugar) with dilute hydrochloric acid or sulphuric acid for about two hours. ... The solution is filtered to obtain the crystals of glucose.... hope it helps!!

Answer 2

Glucose can be prepared in the laboratory by boiling sucrose (cane sugar) with dilute hydrochloric acid or sulphuric acid for about two hours. This hydrolyzes sucrose to glucose and fructose. In order to separate glucose from fructose, alcohol is added during cooling. Glucose is almost insoluble in alcohol. It crystallizes out first, while fructose is more soluble. It remains in the solution. The solution is filtered to obtain the crystals of glucose.
By boiling sucrose with dilute HCl or H2 SO 4 in alcoholic solution
Sucrose Glucose Fructose
By boiling starch with dilute H2 SO 4 , at 393 K, under pressure
starch or cellulose Glucose
Is there an error in this question or solution?
APPEARS IN
 2013-2014 (October) (with solutions)
 2016-2017 (March) (with solutions)
Solution for question: Laboratory method for preparation of glucose concept: Carbohydrates - Preparation of Glucose from Sucrose (Cane Sugar) and Starch. For the courses HSC Science (General) , HSC Science (Electronics), HSC Science (Computer Science)  click      to share
C 12 H22 O11 + H2 O > C 6 H12 O6 + C 6 H12