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

Teacher Recruitment Board Exam Papers – Chemistry

1.pH value of rain water is
6.5 - 7.5 7.5 6.0 4.8 - 8.4

2.The process of conversion of a liquid into vapours at any temperature below its boiling point is called
Melting Condensation Sublimation Evaporation

3.All atoms of the same element have the same number of
Protons Nuetrons Electrons Protons and Nuetrons

4.Mallic Acid is present in which of the following fruit?
Apple Lemon Orange Goya

5.The ___________________ acid is present in lemon
Tartari acid Citric acid Lactic Acid Marlic Acid