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NECO 2020

2020 NECO Biology Past Questions

Browse the 2020 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 2020 Biology CBT — FreeAll NECO Biology years

Sample NECO Biology questions

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  1. Q12006MEDIUMChemistry

    Which compound is a product of the hydrolysis of the of CH$_3$COOC$_3$H$_7$ with aqueous sodium hydroxide?

    1. A.CH3COONa✓ Correct
    2. B.CH3COONaCCH3OH
    3. C.CH3OH
    4. D.C2H5OH
    5. E.C3H7COONa
  2. Q22008MEDIUMEnglish

    Choose from the options lettered A - E the one that contains the sound segment represented by the given phonetic symbol /ts/

    1. A.chauffeur✓ Correct
    2. B.cheap
    3. C.chef
    4. D.sheep
    5. E.ship
  3. Q32008MEDIUMPhysics

    How much heat is required to convert 50g of water at 100°C to steam at the same temperature? (Specific latent heat of vaporization of water = 2260 Jg-11)

    1. A.1.13 × 10-4J
    2. B.1.31 × 102J✓ Correct
    3. C.1.30 × 104J
    4. D.1.13 × 105J
    5. E.1.31 × 106J
  4. Q42006MEDIUMPhysics

    What is the uncertainty in the measurement of time, if the uncertainty in measuring the energy of an electron of mass 10-30 kg is 2.45 × 10-19J? h = 6.6 × 10-34

    1. A.1.35 ×10-15s✓ Correct
    2. B.2.69 × 10-15s
    3. C.4.15 × 10-15s
    4. D.9.05 × 10-15s
    5. E.1.62 × 10-14s
  5. Q52007MEDIUMPhysics

    Calculate the peak voltage of a mains supply of r.ms. value 220V.

    1. A.121 V✓ Correct
    2. B.156 V
    3. C.225 V
    4. D.240 V
    5. E.311 V
  6. Q62006MEDIUMEnglish

    Choose the interpretation that you consider most appropriate of the following questions (Nos 21-30) The President promised not to introduce any belt-tightening measures this year. This means the year will be less stressful

    1. A.culturally✓ Correct
    2. B.Economically
    3. C.educationally
    4. D.politically
    5. E.socially
  7. Q72002MEDIUMBiology

    Which reagent is used to test for the presence of starch in a food substance?

    1. A.anhydrous copper (II) sulphate
    2. B.Fehling’s solution
    3. C.iodine solution
    4. D.iron(III) oxide✓ Correct
    5. E.Million’s reagent
  8. Q82007MEDIUMPhysics

    Which of the following substances undergoes sublimation?

    1. A.Ether
    2. B.Ice✓ Correct
    3. C.Iodine
    4. D.Naphthalene
    5. E.Turpentine
  9. Q92006MEDIUMMathematics

    Find the value of 2a - b if a + b = 8 and 4a - b = 22

    1. A.2
    2. B.4✓ Correct
    3. C.6
    4. D.8
    5. E.10
  10. Q102001MEDIUMMathematics

    Mr Aborowa bought a car for N200,000.00 and later sold it for N170,000.00. What is the percentage loss?

    1. A.11.60%
    2. B.7.60%
    3. C.15%✓ Correct
    4. D.17.65%
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