You can Make A1 in NECO Chemistry using the free and simple Chemistry NECO exams tips here. Likely NECO Chemistry Questions and Answers for Objective and Theory exams ( Paper 1 &2) has been provided here for all SSCE candidates.
The National Examination Council, NECO Chemistry exam will take place according to the schedule in the NECO Timetable and all the material needed for the exams will be provided. If you are looking for likely NECO Chemistry expo/ runs, follow the latest news here.
This article also make provision for NECO Chemistry past Questions and Answers for Objectives and Essay for practice purposes. Read below for more details on the Correct NECO SSCE Questions and Answers and PDF Download.
Details on NECO Chemistry Objectives and Essay Papers (1&2)
The National Examination Council, NECO Chemistry exam booklet will consist of two (2) Sections (paper III and II). Do not open the booklet until you are told to do so. While waiting, write your Name and Examination Number in the spaces provided at the top right-hand corner of this booklet.
Answer Paper III on your objective test answer sheet. Paper III is expected to last for1 hour. On completion of Paper III, the objective test answer sheet will be collected. Candidates will answer Paper II on their answer booklet.
NECO Chemistry Objectives Questions and Answers 2025
NECO Chemistry Past Questions and Answers:
1. Indicate the Group of a Compound with the general formula CnH2n2.
- A. alkanoate
- B. alkane
- C. alkanal
- D. alkene
- E. alkyne
Correct Answer: E (alkyne)
2. The scientist who discovered the zig-zag movement of gas molecules is
- A. Graham
- B. Dalton
- C. Gay Lussac
- D. Brownian
- E. Newton
Correct Answer: D (Brownian)
3. Which of the following gases will bleach moist litmus paper?
- A. HCl
- B. CO2
- C. Cl2
- D. N2O
- E. SO3
Correct Answer: C (Cl2)
4. Elements with high ionization energies would——-
- A. have high effective nuclear charges
- B. have large atomic radii
- C. lose electrons easily
- D. have low atomic numbers
Correct Answer: A (have high effective nuclear charges)
5. Which of the following metals does not react with water to produce hydrogen?
- A. Zinc
- B. Potassium
- C. Sodium
- D. Copper
Correct Answer: D (Copper)
6. The bond between NH3 and H+ in NH4+ is?
- A. electrovalent
- B. covalent
- C. hydrogen
- D. dative
Correct Answer: D (dative)
7. One of the following standard conditions is not correct about energy changes?
- A. Concentration of solution must be 1 mol/dm3
- B. B. Standard pressure is 1 atm
- C. Standard temperature is 298K
- D. ΔH at 298 K is the activation energy
Correct Answer: D (ΔH at 298 K is the activation energy)
8. The following acids are monobasic EXCEPT
- A. dioxonitrate (Ill) acid
- B. ethanedioic acid
- C. oxochlorate (I) acid
- D. methanoic acid
- E. hydrobromic acid
Correct Answer: B (ethanedioic acid)
9. Brain tumors can be located by using an isotope of
- A. carbon – 14
- B. iodine 131
- C. technetium 99
- D. uranium235
- E. uranium 238
Correct Answer: C ( technetium 99)
Chemistry Objectives Questions and answers for NECO SSCE loading…
Essay Chemistry Questions PDF
The following are the Theory Chemistry Past Questions:
1a. Starting with calcium chloride, describe briefly how a solid sample of calcium trioxocarbonate (IV) can be prepared in the laboratory.
b. With relevant equations outline the procedure for the purification of impure copper.
c. Copper reacts with concentrated trioxonitrate (V) acid: i. write a balanced chemical equation for the reaction;
ii. state what would be observed in the reaction,
iii. state why the copper is oxidized;
Chemistry Expo/Runs
The latest updates on the Likely NECO Chemistry expo/runs will be provided here once available. The National Examination Council, NECO exams is for candidates that are fully prepared. The likely NECO objectives and Theory Expo are to guide you on how to answer the NECO exam Questions.
Tips to Passing Chemistry in NECO
- Pray before the commencement of the NECO Chemistry exams
- Avoid every disturbance before and during the exams
- Read the instructions provided on the questions paper accordingly
- Call the attention of the invigilators where there’s confusion
- Read the objectives questions at least three times before chosing your answer
- Start with the Questions you know best on the theory section.
- Make sure your handwriting are readable
- Cross-check your work before submitting them.
Those that wish to know more about the National Examination Council, NECO Chemistry, should use the comment section below for questions.
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