A. Chlorine
B. Iron
C. Calcium
D. None of these
Advertisement
Related Mcqs:
- Defeciency of following vitamin decreases hemoglobin production ?
- A. Biotin B. Thiamine C. Niacin D. Pyridoxine E. None of these...
- The function of hemoglobin is____________?
- A. Transportation of oxygen B. Destruction of bacteria C. Prevention of anemia D. Utilization of energy...
- The main Constituent of Biogas is__________?
- A. Methane B. Hydrogyn C. Oxygen D. Carbin dioxide Submitted by: Farhan Rana...
- Main constituent in air is ___________?
- A. Oxygen B. Nitrogen C. Hydrogen D. Helium Submitted by: Mirza Musawer Jamil...
- The main constituent of Pearls are: ______________?
- A. Calcium oxide &Ammonium Chloride B. Calcium Carbonate &Megnesium Carbonate C. Aragonite & Conchiolin D. None of these Submitted by: Fahad Mehsud...
- The biggest planet in our solar system is___________?
- A. Venus B. Pluto C. Jupiter D. None...
- The longest bone in human body is___________?
- A. Ulna B. Tibia C. Femur D. Humerus Submitted by: Sadam Khan...
- The Shortest (smallest) bone in human body is___________?
- A. Stapes B. Tibia C. Femur D. Humerus Submitted by: Sadam Khan...
- speed of sound in dry air at 20 °C is___________?
- A. 353 m/s B. 345 m/s C. 343 m/s D. none of them Submitted by: ARIF HUSSAIN...
- The gas usually filled in the electric bulb is___________?
- A. Nitrogen B. Hydrogen C. Carbon dioxide D. Oxygen Submitted by: Muhammad Ali Kunbhar...
Advertisement
The correct answer to the question: "The main constituent of hemoglobin is___________?" is "Iron".
