Jamb Chemistry Past Questions For Year 2018
Question 31
What volume of oxygen will remain after reacting 8cm\(^3\) of hydrogen gas with 20cm\(^3\) of oxygen gas
- A. 10cm\(^3\)
- B. 12cm\(^3\)
- C. 14cm\(^3\)
- D. 16cm\(^3\)
Question 32
(I). 3CuO(s) + 2NH3(g) -----> 3Cu(s) + 3H2O(l) + N2(g)
(II). 2NH3(g) + 3Cl2(g) -----> 6HCl(g) + N2(g)
(III). 4NH3(g) + 3O2(g) -----> 6H2O(l) + N2(g)
The reactions represented by the equations above demonstrate the
- A. basic properties of ammonia
- B. acidic properties of ammonia
- C. reducing properties of ammonia
- D. oxidizing properties of ammonia
Question 33
mE + nF -----> pG + qH
In the equation shown, the equilibrium constant is given by?
- A. \(\frac{[E]^m[F]}{[G]^p[H]^q}\)
- B. \(\frac{[E][F]}{[G][H]}\)
- C. \(\frac{[G]^p[H]^q}{[E]^m[F]^n}\)
- D. \(\frac{[G][H]}{[E][F]}\)
Question 34
Beryllium and Aluminium have similar properties because they
- A. are both metals
- B. belong to the same group
- C. belong to the same period
- D. are positioned diagonally to each other
Question 35
The radio isotope used in industrial radiography for the rapid checking of faults in welds and casting is?
- A. carbon-14
- B. phosphorus-32
- C. cobalt-60
- D. iodine-131
