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NECO 2022

2022 NECO Biology Past Questions

Browse the 2022 NECO Biology past questions with answers and step-by-step explanations. Biology demands precise terminology and careful diagram reading. Successful candidates revise plant and animal physiology, ecology and genetics with active recall — and rehearse the standard practical setups before exam day. Use the year archive below to time yourself the way the actual exam does — most candidates need to work questions across multiple years before the patterns become obvious.

Practice 2022 Biology CBT — FreeAll NECO Biology years

Sample NECO Biology questions

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  1. Q12006MEDIUMBiology

    In genetics, test cross is used to

    1. A.confirm the number of offspring in F1
    2. B.confirm the number of gametes present in parents✓ Correct
    3. C.test for heterozygosity
    4. D.test for X and Y chromosomes
    5. E.test for the phenotypic ratio
  2. Q22007MEDIUMMathematics

    If y2+ 14y + k is a perfect square, then k =

    1. A.4
    2. B.7
    3. C.28
    4. D.49
    5. E.196✓ Correct
  3. Q32005MEDIUMChemistry

    The pH of water is 7. What is the pH of orange juice?

    1. A.7✓ Correct
    2. B.above 10
    3. C.below 2
    4. D.between 5.5 and 6.5
    5. E.between 7.5 and 8.5
  4. Q42007MEDIUMChemistry

    Chlorine is used in water purification because it

    1. A.bleaches impurities in the water
    2. B.decolorizes water
    3. C.destroys bacteria✓ Correct
    4. D.is extremely soluble in water
    5. E.is pleasant tasting
  5. Q52007MEDIUMPhysics

    A projectile fired with initial velocity, u will attain its maximum height H when the angle of projection θ is

    1. A.30°
    2. B.450°
    3. C.60°
    4. D.75°✓ Correct
    5. E.90°
  6. Q62007MEDIUMChemistry

    The following equations represent redox reactions EXCEPT

    1. A.Ba2+(aq) + SO2-4 (aq) → BaSO4(s)
    2. B.Cl2(g) + 2Br- (aq) → 2CI - (aq) + Br2(g)
    3. C.Fe2+(aq) + ½ C I2(aq) → Fe3+ (aq) + CI-(aq)
    4. D.2Fe3+(aq) + Sn2+(aq) → 2Fe2+(aq) Sn4+ (aq)✓ Correct
    5. E.Zn(s) + CU2+(aq) → Zn2+(aq) + CU(s)
  7. Q72014MEDIUMComputer Studies

    Which of these registered jacks is used in terminating phone lines?

    1. A.A. RJ 11
    2. B.B.  RJ 14
    3. C.C. RJ 25✓ Correct
    4. D.D.  RJ 35
    5. E.E. RJ 45
  8. Q82004MEDIUMGovernment

    The organ of the United Nations responsible for negotiating agreements with the specialized agencies is the

    1. A.A. Economic and Social Council
    2. B.B. General Assembly
    3. C.C. International Court of Justice✓ Correct
    4. D.D. Security Council
    5. E.E. Trusteeship Council
  9. Q92006MEDIUMPhysics

    A man at the back of a crowd watches a parade by holding a plane mirror just above his head. The parade passes 6 metres behinde his head and the mirror is 0.25m in front of the man. How far does the image in the mirror appear to be from the man?

    1. A.6.50m
    2. B.6.25m✓ Correct
    3. C.6.00m
    4. D.5.75m
    5. E.5.50m
  10. Q102006MEDIUMEnglish

    I am not going to do______________.

    1. A.any more work today✓ Correct
    2. B.any work more today
    3. C.today any more work
    4. D.today any work more
    5. E.work any more today
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