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30 Possible/Likely Chemistry 2017 JAMB Questions – Last set paper

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  1. In a chemical reaction, the change in the
    concentration of a reactant with time is
    a. rate of reaction
    b. order of reaction
    c. enthalpy of reaction
    d. entropy reaction
  2. 200cm3 of a gas at 250oC exerts a pressure of
    700 mmHg. Calculate its pressure if its volume
    increases to 350cm3 at 75oC.
    a. 467.11 mmHg
    b. 400.00 mmHg
    c. 1430.54 mmHg
    d. 342.53 mmHg
  3. Ethyne is passed through a hot tube containing
    organo-nickel catalyst to produce
    a. ethanol
    b. benzene
    c. polythene
    d. isoprene
  4. Beryllium and aluminium have similar properties
    because they
    a. belong to the same period
    b. are positioned diagonally to each other
    c. belong to the same group
    d. are both metals
  5. The Mathematical expression of Ph is
    a. log10 H3O+
    b. log10 1/0H-
    c. log10 1/H3O+
    d. log10 0H-
  6. On exposure to the atmosphere, a hydrated salt
    loses its water of crystallization to become
    anhydrous. This phenomenom is reffered to as:
    a. hygroscopy
    b. hydrolysis
    c. deliquescence
    d. efflorescence
  7. The nitrogen obtained from air has a density
    higher than the one from nitrogen-containing
    compounds because the one from air is
    contaminated with?
    a. rare gas
    b. carbon [iv] oxide
    c. oxygen
    d. water vapour
  8. Zn[s] + CUSO4[aq] ——–> ZnSO4[aq] + Cu[s]
    a. +1 to +2
    b. +1 to + ±3
    c. 0 to +2
    d. 0 to + 4
  9. The process of converting starch to ethanol is
    a. cracking
    b. fermentation
    c. oxidation
    d. distillation
  10. In the electrolytic extraction of calcium chloride,
    the cathode is
    a. zinc
    b. platinum
    c. iron
    d. graphite
  11. Due to the unstable nature of ethyne, it is stored
    by dissolving
    a. ethane-1,2-diol
    b. ethanoic acid
    c. propanone
    d. propanol
  12. Which subject are you doing?
    a. C.R.S
    b. Physics
    c. English
    d. Chemistry
  13. The petroleum fraction that is used in heating
    furnaces in industries is
    a. diesel oil
    b. kerosene
    c. lubricating oil
    d. gasoline
  14. In the extraction of sodium from fused sodium
    chloride, the anode is made of platinum because?
    a. sodium is formed at the anode
    b. sodium does not react with platinum
    c. chlorine does not react with platinum
    d. chlorine is formed at the anode.
  15. A Mixture is different from a compound base
    a. The properties of a compound are those of its
    individual constituents while those of a mixture differ
    from its constituents
    b. the constituents of a compound are chemically
    bound together while those of a mixture are not.
    c. a mixture can be represented by a chemical
    formula while a compound cannot
    d. a mixture is always homogenous while a
    compound is not
  16. The basicity of CH3COOH is
    a. 4
    b. 2
    c. 3
    d. 1
  17. The color of litmus in a neutral medium is
    a. purple
    b. yellow
    c. orange
    d. pink
  18. How Many protons, neutrons and electrons
    repectively are present in the element Co?
    a. 27, 33 and 33
    b. 27, 33 and 27
    c. 60, 33 and 60
    d. 33, 27 and 27
  19. How many faraday of electricity is required to
    produce 0.25 mole of copper?
    a. 1.00F
    b. 0.05F
    c. 0.50F
    d. 0.01F
  20. What is the percentage of sulphur in sulphur [iv]
    a. 50%
    b. 25%
    c. 66%
    d. 40%
  21. Which of the following salts will turn blue litmus
    a. Soduim tetrahydroxozincate[ii]
    b. sodium trioxocarbonate[iv]
    c. zinc chloride hydroxide
    d. potassium hydrogentetraoxosulphate[iv]
  22. The dispersion of a liquid in a liquid medium will
    a. an emulsion
    b. a gel
    c. an aerosol
    d. a fog
  23. Which of the following will liberate hydrogen from
    dilute tetraoxosulphate[iv] acid?
    a. lead
    b. copper
    c. gold
    d. magnesium
  24. A gas X diffuses twice as fast as gas Y. If the
    relative molecular mass of X is 32, Calculate the
    relative molecular mass of Y.
    a. 128
    b. 16
    c. 64
    d. 8
  25. Polystrene is widely used as packaging materials
    for fragile objects during transportation because of
    a. lightness
    b. high density
    c. high compressibility
    d. low density
  26. Glycerol or Propane- 1,2,3- triol is obtained from
    production of soap.
    a. propanol
    b. glycerol
    c. methanol
    d. ethanol
  27. Flourine does not occur in the state in nature
    because of its high reactivity
    a. it is inert
    b. it is a poisonous gas
    c. of its high reactivity
    d. it belongs to the halogen family
  28. The polymer used in making car rear lights is
    a. polystyrene
    b. Perspex
    c. polyacrylonitrile
    d. Bakelite
  29. A Compound that gives a brick-red colour to a
    non luminous flame is likely to contain
    a. Calcuim ions
    b. copper ions
    c. aluminium ions
    d. sodium ions
  30. If the the difference in electronegativity of
    elements P and Q is 3.0. The bond that will be
    formed within them is
    a. Co-ordinate
    b. Metallic
    c. Ionic
    d. Covalent

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About Amakvitaa (6010 Articles)
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19 Comments on 30 Possible/Likely Chemistry 2017 JAMB Questions – Last set paper

  1. Thanks sir


  2. Thank You Sir


  3. Tnk u sir bt I thought d ans will b provided so we can cross check wit our own work if correct


  4. Thanks, but this question is taken from past question, either 2015, 2014 or so.


  5. pls sir, could u provide d answer, so that we will be able 2 cross check


  6. we need d ans plz sir


  7. Tnks God bless


  8. iborogu oghenegare // __ May 10, 2017 at 11:42 PM // Reply

    sir pls we answer to those questions so that we can check our books


  9. Nworah Chiamaka // __ May 11, 2017 at 10:53 AM // Reply

    Tnks Sir Bt We Need D Answer


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