ZamgistThe National Examination Council (NECO) has scheduled the NECO Chemistry Practical 2026 Questions And Answers paper to kick of on 25th, June 2026.
This brings the attention of candidates writing the exam in to searching for NECO Chemistry Practical 2026 Questions And Answers.
How to Get NECO Chemistry Practical 2026 Questions And Answers
In this section, you will read the steps and requirements needed for you to get NECO Chemistry Practical 2026 Questions And Answers before exam.
NECO Chemistry Practical 2026 Paper is Categorized in to 1 part:
- NECO Chemistry Practical 2026
Here on zamgist, we have solved all the questions. (i.e is NECO Chemistry Practical 2026).
CHEMISTRY PRACTICAL SOLUTIONS
QUESTION 1
Volume of pipette used = 25.00 cm3
| Titration | Rough | 1 | 2 | 3 |
|---|---|---|---|---|
| Final burette reading (cm3) | 25.20 | 25.10 | 25.20 | 25.10 |
| Initial burette reading (cm3) | 0.00 | 0.00 | 0.00 | 0.00 |
| Volume of A used (cm3) | 25.20 | 25.10 | 25.20 | 25.10 |
(a)
(i) Average volume of A used, VA
VA = (25.20 + 25.10 + 25.20 + 25.10) / 4
VA = 100.6 / 4 = 25.15 cm3
(ii) Equation:
H2X(aq) + 2NaOH(aq) → Na2X(aq) + 2H2O(l)
(b)
(i) Concentration of B in mol/dm3
Concentration = Gram concentration / Molar mass
CB = (1/250 × 1000) / (23 + 16 + 1)
CB = 4 / 40 = 0.10 mol/dm3
(ii) Using:
(CAVA) / (CBVB) = nA / nB
(CA × 25.15) / (0.10 × 25.00) = 1 / 2
CA = (0.10 × 25.00) / (25.15 × 2)
CA = 0.0497 mol/dm3
(iii) Molar mass of A
Given: Mass concentration of A = 4.85 g/dm3
Molar mass = Mass concentration / Molarity
= 4.85 / 0.0497
= 97.59 ≈ 98 g/mol
(c)
- NaOH is deliquescent; it absorbs water, causing concentration to drop during measurement.
- It reacts with CO2 in air to form sodium carbonate.
- This contaminates the weighed mass and gives inaccurate molarity.
QUESTION 2
| S/N | TEST | OBSERVATION | INFERENCE |
|---|---|---|---|
| (a)(i) | C + 5 cm3 distilled water and shake thoroughly. Divide solution into three portions. | C dissolves to form a blue clear solution. | C is soluble in water. |
| (ii) | To first portion, add NaOH solution in drops, then in excess. | Blue gelatinous precipitate forms. Precipitate remains undissolved in excess. | Cu2+ present and confirmed. |
| (iii) | To second portion, add dilute NH3 solution in drops, then in excess. | Blue precipitate forms. Precipitate dissolves to give deep blue solution. | Cu2+ present and confirmed. |
| (iv) | To third portion, add BaCl2 solution. | White precipitate forms. | SO42− or SO32− |
| (v) | Add dilute HCl in excess to mixture in (iv). | Precipitate remains undissolved. | SO42− confirmed. |
QUESTION 3
(a)
(i) Methyl Orange
(ii)
- I. Yellow
- II. Red
(iii)
Methyl orange is suitable for a titration involving a strong acid (H2SO4).
(iv)
- Readings must be taken at the bottom of the meniscus.
- Rinse burette with solution to be used.
(v) Neutralization reaction.
(b)
(i)
- I. Hofmann Voltameter
- II. Kipp’s Apparatus
(ii)
AgNO3 decomposes in the presence of light.
2AgNO3 → 2Ag + 2NO2 + O2
Amber bottles prevent photodecomposition, keeping the solution clear and maintaining accurate concentration.
| 2026 NECO EXPO | NECO Chemistry Practical 2026 |
|---|---|
| N800 MTN CARD | |
| Online Password | N800 MTN CARD |
| Direct SMS | |
| Delivery Time | 4 hours or midnight before exam |
| Answer page | https://zamgist.net/ |
| WhatsApp No. | +2348151297236 |
| Source | ZAMGIST |
| Group | ZAMGIST MIRACLE CENTER |
| WhatsApp Group Link | Click Here to Join |
| Tags | Chemistry Practical 2026 Questions And Answers |
NECO Chemistry Practical Expo 2026
==> WhatsApp 800 MTN CARD
Whatsapp MEANS The answer will be sent to you on WhatsApp after we confirm your subscription. Add Us In WhatsApp With +2348151297236.
==> Online PIN: N800 MTN CARD
Online PIN MEANS The Pin to access our answers online via https://zamgist.net will be sent to u at least 4 hours before the exam to access our answers.
Send The Following details:-
(i) MTN CARD Pin(s)
(ii) Your Name
(iii) Subject
(iv) Phone number
===> 08151297236 via WhatsApp or SMS
RELATED:
- NECO Timetable 2026 for Science, Art and Commercial Students
- NECO Examination Supervisors Recruitment 2026
- NECO Computer Studies Practical 2026 Questions And Answers
NOTE:- All SMS sent to the above number are attended to. always send us WhatsApp message of your complaint, your message(s) will get to us and we will reply
Zamgist
