Jamb Chemistry Past Questions For Year 2018
Question 1
A given amount of gas occupies 10.0dm\(^3\) at 4atm and 273°C. The number of moles of the gas present is?
[Molar volume of gas at s.t.p = 22.4dm\(^3\)]
- A. 0.89 mol
- B. 1.90 mol
- C. 3.80 mol
- D. 5.70 mol
Question 2
The type of bonding in [Cu(NH\(_3\))\(^4\)]\(^{2+}\) is
- A. coordinate
- B. electrovalent
- C. metallic
- D. covalent
Question 3
What is the PH of 0.00 1 moldm\(^3\) solution of the sodium hydroxide
- A. 14
- B. 13
- C. 12
- D. 11
Question 4
The Sulphide which is insoluble in dilute hydrochloric acid is
- A. FeS
- B. CuS
- C. ZnS
- D. Na2S
Question 5
A substance that is used as a ripening agent for fruits is
- A. ethene
- B. propane
- C. methane
- D. butane
