TN TRB Asst Professor Exam 2016 Model QP

1.Which of the following metal is present in hemoglobin?

Calcium Magnesium Iron Vitamin - C

2.Chemical name of Vitamin A is ____________________

Niacin Riboflavin Biotin Retinol

3.Grapes contain which of the following acid?

Amino acid Citric acid Tartaric acid Mallic acid

4.Human bone contain which of the following ?

Pottasium Oxygen Carbon - di - oxide Carbon

5._______________ is a form of chemical bonding that is characterised by the sharing of electrons between 2 atoms

Coordinate Bond Covalent Bond Chemical Bond Ionic Bond