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Chemistry JAMB Past Questions

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1836
For a general equation of the nature xP + yQ → mR + nS, the expression for the equilibrium constant is
  • A. k [P]x [Q]y
  • B. \(\frac{[P]^x [Q]^y}{[R]^m [S]^n}\)
  • C. \(\frac{[R]^m [S]^n}{[P]^x [Q]^y}\)
  • D. \(\frac{m[R] n[S]}{x[P] y[Q] }\)
View Answer & Discuss (1) JAMB 2017
1837
A given mass of gas occupies 2dm3 at 300k. At what temperature will its volume be doubled, keeping the pressure constant?
  • A. 400k
  • B. 480k
  • C. 550k
  • D. 600k
View Answer & Discuss (12) JAMB 2017
1838
The oxidation number of iodine in KIO3 is
  • A. +7
  • B. +3
  • C. +5
  • D. +6
View Answer & Discuss (5) JAMB 2017
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1839
An isomer of C5H12 is
  • A. 2–ethyl butane
  • B. butane
  • C. 2–methyl butane
  • D. 2–methyl propane
View Answer & Discuss (2) JAMB 2017
1840

When few drops of concentrated trioxonitrate(V) acid is added to an unknown sample and wanned an intense yellow colouration is observed. The likely functional group present in the sample is

  • A. NH2RCHCOOH
  • B. CHO
  • C. CO
  • D. CNH2
View Answer & Discuss (2) JAMB 2017
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