CBSE Class 12 Chemistry Worksheet - Polymers and Chemistry. 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. Differentiate between:
a. Low density polythene and high density polythene
b. DNA and RNA
c. Nuleoside and Nucleotide
d. Antacids and Antihistamines
e. Disinfectants and antiseptics
f. Agonists and antagonists
g. Elastomers and fibres
2. Write one example each:
a. Broad spectrum antibiotics
b. Artificial sweetening agents
c. Cationic detergents
d. Essential amino acid
e. Source of vitamin B
f. Deficiency disease caused by vitamin C
g. Biodegradable polymer
h. Thermosetting polymer
3. Explain Why?
a. Soaps do not work in hard water
b. Aspirin though an analgesic is given to people suffering from hypertension/cardiac arrests
c. Use of aspartame is limited to cold drinks
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