Deficiency of which vitamin causes rickets ?
(ii) Given an example for each of fibrous protein and globular protein. (iii) Write the product formed on reaction of D-glucose with `Br_(2)` water.

Explanation

Deficiency of vitamn D causes rickets.
(ii) Fibrous protein : Ccllagen, karatin (any one).
(Globular protein : Insulin, albumin.
(iii)`Br_(2)` water oxidises D-glucose into D-gluconic acid.
`{:(" CHO COOH"),(" | |"),((COOH)_(4)overset(Br_(2)water)to(CHOH)_(4)),(" | |"),( " CH"_(2)"OH" " CH"_(2)"OH"),(" Gluconic acid"):}`