NECO Chemistry Questions and Answers 2021/2022 Objectives/Essay (Expo) PDF |

Live NECO Chemistry Questions and Answers 2021/2022 to Objectives and Essay. Get the latest NECO Chemistry expo today. All candidates that are ready should make good Use of the NECO Chemistry 2021 Questions and Answers provided on this page. 

Apart from the success guide, Candidates will have Tips and NECO Chemistry past Questions and Answers made available. You don’t have to worry about having the right guide on the NECO Chemistry Answers during Examination.

NECO Chemistry

The National Examination Council ( NECO) had supplied all schools with the necessary materials to facilitate the welfare of the Chemistry exam.

NECO Chemistry Objectives 2021 Questions and Answers 

The National Examination Council is Responsible for the Setting and marking of the NECO Examination.

Due to this fact, We advise all the candidates that registered for the NECO Exam to beware of people promising to supply the answers during the exam. All the answers to the questions are there with you, there is no other NECO Chemistry expo.


1. Brain tumors can be located by using an isotope of
  • A. carbon – 14
  • B. iodine 131
  • C. technetium 99
  • D. uranium235
  • E. uranium 238

ANSWER: B (iodine 131)

2. The following equations represent redox reactions EXCEPT
  • A. Ba2+(aq) + SO2-4 (aq) → BaSO4(s)
  • B. Cl2(g) + 2Br (aq) → 2CI  (aq) + Br2(g)
  • C. Fe2+(aq) + ½ C I2(aq) → Fe3+ (aq) + CI(aq)
  • D. 2Fe3+(aq) + Sn2+(aq) → 2Fe2+(aq) Sn4+ (aq)
  • E. Zn(s) + CU2+(aq) → Zn2+(aq) + CU(s)

ANSWER: A (Ba2+(aq) + SO2-4 (aq) → BaSO4(s))

3. Which of the following statements is NOT correct of group VII elements? They
  • A. are diatomic
  • B. are good oxidizing agents
  • C. are highly electronegative
  • D. have high electron affinity
  • E. have relatively low ionization potentials

ANSWER: E (have relatively low ionization potentials)

4. The empirical formula of a hydrocarbon containing 0.12 mole of carbon 0.3 mole of hydrogen is
  • A. CH2
  • B. CH3
  • C. C2H2
  • D. C2H4
  • E. C2H6


5. The reaction of an alkanol with alkanioc acid is known as
  • A. dehydration
  • B. esterification
  • C. halogenation
  • D. hydrogenation
  • E. saponification

ANSWER: B (esterification)

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NECO Chemistry Essay Questions and answers 2021

The following has been proving itself very useful in time like this, follow it and and passing the NECO Chemistry Exam can never be a problem for you.

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The following are how to pass NECO Examination.

NECO Chemistry Expo 2021

The following has been proving itself very useful in time like this, follow it and and passing the NECO Chemistry Exam can never be a problem to you.

  • Go to the NECO Exams venue early
  • Avoid Distraction Before or during exams
  • Enter your details in the answers booklets correctly
  • Make sure your hand writing are readable
  • follow the examination instruction
  • Start with the questions that you are familiar with.
  • Crosscheck your answers before submission

I hope the NECO Chemistry Questions and Answers is useful to you and the Exam will never be a problem for you after going through this wonderful article.

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