Oxidation And Reduction Jamb Chemistry Past Questions
Question 1
Calculate the relative molecular mass of Limestone CaCO3, (Ca = 40, C =12, O = 16)
- A. 56
- B. 100
- C. 76
- D. 90
Question 2
The products formed when primary Alkanols are oxidized using acidified potassium tetraoxomanganate (VII) are what?
- A. CH3CH2CHO and H2O
- B. CH3CHO and CO2
- C. CH3CH2COOH and H2
- D. CH3COOH and CO2
Question 3
The presence of ammonia gas in a desiccator can exclusively be removed by
- A. phosphorus (V) oxide
- B. fused calcium chloride
- C. calcium oxide
- D. concentrated tetraoxosulphate (VI) acid
Question 4
Which of the following is NOT a redox reaction?
- A. 2HNO2 + 2HI → 2H2O + 2NO + I2
- B. Zn + H2SO4 → ZnSO4 + H2
- C. Ca(HCO3)2 → CaCO3 + H2O + CO2
- D. 4FeO + O2 → 2Fe2O3
- E. 2Na + Cl2 → 2NaCl
