Jamb Chemistry 2015 Past Questions and Answers

Question 36:

• JAMB 2015

There are basic particles from which matter called be made except

A. Salt
B. Atom
C. Ion
D. Molecule

Question 37:

• JAMB 2015

The energy value of petrol can be determined by

A. Bomb calorimeter
B. Catalytic cracker
C. Fractionating column
D. Thermometer

Question 38:

• JAMB 2015

What volume of 0.5mldm³ H₂SO₄ will exactly neutralize 20cm³ of 0.1moldm³ NaOH Solution?

A. 2.0cm³
B. 5.0cm³
C. 6.8cm³
D. 8.3cm³

Question 39:

• JAMB 2015

A compound contains 40.0% carbon, 6.7% hydrogen and 53.3% oxygen. If the molar mass of the compound is 180, Find the molecular formula [H = 1, C = 12, O = 16)

A. CH₂O
B. C₃H₆O₃
C. C₆H₁₂O₆
D. C₆H₁₂O₃

Question 40:

• JAMB 2015

An oxidation state of Cr in K2CrO7

A. 7
B. 6
C. 5
D. 4