CBSE Class 12 Chemistry Biomolecules Worksheet Set B

CBSE Class 12 Chemistry Biomolecules (1). 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.

1.Name the sugar present in milk.

A: Lactose,

2.How many monosaccharide units are present in it?

A: two monosaccharide units are present.

3. What are such oligosaccharides called?

A: Such oligosaccharides are called disaccharides

4. How do you explain the presence of all the six carbon atoms in glucose in a straight chain?

A: On prolonged heating with HI, glucose gives n-hexane.

4. Name the linkage connecting monosaccharide units in polysaccharides.

A: Glycosidic linkage.

5. Under what conditions glucose is converted to gluconic and saccharic acid?

A: Glucose is converted to gluconic acid by bromine water and to saccharic acid by conc. HNO3.

6. Which sugar is called invert sugar?

A: Sucrose.

7. During curdling of milk, what happens to sugar present in it?

A: It converts into Lactic acid.

8. . Monosaccharide contain carbonyl group hence are classified, as aldose or ketose. The number of carbon  atoms present in the monosaccharide moleculeare also considered for classification. In which class of monosaccharide willyou place fructose?

A:Fructose is a ketohexose.

Please click the link below to download full pdf file for CBSE Class 12 Chemistry Biomolecules (1).

Tags: 

 


Click to View or Download pdf file
Click for more Chemistry Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

CBSE Reduced Syllabus Clarification

CBSE board has issued the following clarification relating to various news reports regarding reduction in syllabus and questions from the reduced syllabus during board exams. Please read below: It has come to notice of the Board through a section of media reports that...

Re verification of Class 12 Board Exams Marks

Modalities and Schedule for Senior Secondary School (Class XII) Examinations, 2020 in the subjects whose examinations have been conducted by CBSE for the processes of (I) Verification of Marks (II) Obtaining Photocopy of the Evaluated Answer Book(s) (Ill) Re-evaluation...

Board Cancelled Official CBSE Statement

Keeping in view the requests received from various State Governments and the changed circumstances as on date, following has been decided- 1. Examinations for classes X and XII which were scheduled from 1st July to 15th, 2020 stand cancelled. 2. Assessment of the...

Cogito and The Question Book A series on Thinking skills by CBSE

The Board has dedicated this academic session 2020-21 for ‘Competency Based Learning’. Skills connected to Critical & Creative thinking, Problem Solving, Collaboration and Communication are core to successful living in the 21st Century. To focus on the importance...

CBSE Reduced Syllabus Class 11 and 12

CBSE has announced major reduction in the syllabus for class 11 and class 12. There has been major changes too in the main syllabus for class 11 and 12. The prevailing health emergency in the country and at different parts of the world as well as the efforts to contain...

CBSE Reduced Syllabus Class 9 and 10

The prevailing health emergency in the country and at different parts of the world as well as the efforts to contain the spread of Covid-19 pandemic has resulted in loss of class room teaching due to closure of schools. Therefore the CBSE Board has decided to revise...

×
Studies Today