Write the name of deficiency diseases of Vitamin A, Vitamin $B_1$ , Vitamin C and Vitamin D.

Q. Name the deficiency diseases caused due to deficiency of:
(i) Iodine (ii) Vitamin $B_2$ (iii) Vitamin D (iv) Fluorine (v) Vitamin C (vi) Vitamin A (vii) Vitamin $B_{12}$ (viii) Iron.

Q. Deficiency disease, chemical name and molecular formula of following vitamins.
(a)vitamin $A$
(b)Vitamin $B$
(c)Vitamin $C$
(d)Vitamin $D$
(e)Vitamin $E$
(f)Vitamin $K$

Q. Write the names of the diseases caused due to deficiency of vitamines ${}^{\prime }{A}^{\prime }$ and vitamines ${}^{\prime }{B}^{\prime }$?

Q. Vitamin - ?
Name of the deficiency diseases - Beri - Beri
Source of Vitamin - ?
Function of vitamin - ?

Q. Match the following vitamins with their deficiency diseases.

S.No.	Vitamins	Deficiency diseases
1.	Vitamin $A$	Beri beri
2.	Vitamin $B_1$	Scurvy
3.	Vitamin $C$	Rickets
4.	Vitamin $D$	Nyctalopia