Cobalt is a metal which is:

(A) Strongly attracted by a magnet
(B) Not attracted by a magnet
(C) Not a magnet
(D) Weakly attracted by a magnet

Q. Cobalt is a chemical element with the symbol Co, it’s atomic number is:
(A) 17
(B) 27
(C) 37
(D) 47

Q. Cobalt is the active center of a group of coenzymes called:
(A) Cobaltimins
(B) Cobalium
(C) Cobalamins
(D) None of these

Answers:
1. (A) Strongly attracted by a magnet
2. (B) 27
3. (C) Cobalamins