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Chemistry JAMB Past Questions

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1981

The combustion of carbon(II)oxide in oxygen can be represented by equation:
         2CO + O\(_2\) → 2CO\(_2\)
Calculate the volume of the resulting mixture at the end of the reaction, if 50cm\(^3\) of carbon(ii)oxide was exploded in 100cm\(^3\) of oxygen

  • A. 75cm\(^3\)
  • B. 125cm\(^3\)
  • C. 100cm\(^3\)
  • D. 50cm\(^3\)
View Answer & Discuss (17) JAMB 2019
1982

When ammonia and hydrogen ion bond together to form ammonium ion, the bond formed is called

  • A. electrovalent bond
  • B. compound bond
  • C. ionic bond
  • D. covalent bond
View Answer & Discuss (3) JAMB 2019
1983

Which of the following represents the kind of bonding present in ammonium chloride?

  • A. ionic only
  • B. covalent only
  • C. ionic and covalent
  • D. dative covalent
View Answer & Discuss (9) JAMB 2019
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1984

Consider the reaction
A\(_{(s)}\) + 2B\(_{(g)}\) → 2C\(_{(aq)}\) + D\(_{(g)}\)
What will be the effect of a decrease in pressure on the reaction?

  • A. the equilibrium will shift
  • B. rate of forward reaction will increase
  • C. rate of backward reaction will increase
  • D. rates of forward and backward reaction are not affected
View Answer & Discuss (54) JAMB 2019
1985

For the general equation of the nature
xP + yQ ⇌ mR + nS, the expression for the equilibrium constant is

  • A. k[P]\(^x\)[Q]\(^y\)
  • B. \(\frac{m[R][S]}{x[P]y[Q]}\)
  • C. \(\frac{[P]^x[Q]^y}{[R]^m[S]^n}\)
  • D. \(\frac{[R]^m[S]^n}{[P]^x[Q]^y}\)
View Answer & Discuss (1) JAMB 2019
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts