CBSE Class 12 Chemistry 2014 Delhi Set 2 Solved Paper

© examsnet.com
Question : 11
Total: 11
(i) Deficiency of which vitamin causes rickets?
(ii) Give an example for each of fibrous protein and globular protein.
(iii) Write the product formed on reaction of D-Glucose with Br2 water.
Solution:  
(a) The deficiency of vitamin D and lack of calcium in any child's diet causes rickets. As both vitamin D and calcium is important for healthy bones.
(b) Example of fibrous protein is α-keratin. Hairs, nails and collagens majorly contains this protein.
Example of globular protein is haemoglobin; it plays the main role in carrying oxygen in the blood.
(c) Gluconic acid (C6H12O7)
On reacting glucose with bromine water, glucose undergoes oxidation reaction to form gluconic acid as a product.
© examsnet.com
Go to Question: