CBSE Class 12 Chemistry Worksheet - Biomolecules. CBSE issues sample papers every year for students for class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations. Sample papers should be always practiced in examination condition at home or school and the student should show the answers to teachers for checking or compare with the answers provided. Students can download the sample papers in pdf format free and score better marks in examinations. Refer to other links too for latest sample papers.
Q1. What are carbohydrates? What are sugars and non sugars?
Q2. How is glucose prepared commercially?
Q3. Give one chemical test to justify that:-
(a) glucose has five hydroxyl groups
(b) glucose contains a carboxyl gp.
(c) glucose contains one primary alcoholic gp.
(d) In glucose all six C atoms are linked by a linear chain.
Q4. How would you convert: -
(a) glucose to gluconic acid
(b) glucose to saccharic acid.
Q5. What does ‘D’ and ‘L’ signify? Draw Fischer projection formula of D(+) and L(+) glucose.
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