Organic Compounds Jamb Chemistry Past Questions
Question 1
Which of the following compounds can be represented by the molecular formula C2 H6O?
- A. propanal
- B. ethanol
- C. methanoic acid
- D. glucose
Question 2
The Avogadro number of 24g of magnesium is the same as that of
- A. 1g of hydrogen molecules
- B. 16g of oxygen molecules
- C. 32g of oxygen molecules
- D. 35.5g of chlorine molecules
Question 3
An organic compound contains 72% carbon, 12% hydrogen and 16% oxygen by mass. The empirical formula of the compound is
- A. C8H22O3
- B. C6H10O3
- C. C12H12O
- D. C6H12O
- E. C3H6O
Question 4
The metal whose ore can be concentrated by passing it through a magnetic separator is
- A. Zn
- B. Sn
- C. Cu
- D. Ca
Question 5
In the extraction of iron, the waste gas from the furnace is a mixture of
- A. PH3 CO and CO2
- B. CO and C
- C. N2 , CO and CO2
- D. PH3 and CO
