home
Home
home
JAMB
home
WAEC
home
NECO
home
NABTEB
home
NEWS
Welcome To Examface.Net>>>>  The Nigeria's No 1 Exam Expo Website, With Many Years of Experience Verified by Google We Are The Best Among The Rest!.       ---

PAYMENT FOR 2024 WAEC GCE, NECO GCE & NABTEB GCE EXPO ARE ON!!!

---

---

---
NECO GCE 2024 EXPO RUNS (Score A's and B's In YOUR 2024 NECO GCE Exam) (Click Here now to Get Our Assistance)

---

--- ---

---

---

NECO GCE 2024 - CHEMISTRY PRACTICAL
NECO GCE 2024 - CHEMISTRY PRACTICAL

(1)



======================

(2)


======================

(3ai)
(i) Litmus paper
(ii) Universal indicator paper
(iii) pH paper


(3aii)
Distilled water is free from impurities, dissolved salts, and ions (such as calcium, magnesium, or chloride ions) that may interfere with the reactions during analysis.

(3aiii)
(i) Smell or odor
(ii) Effects on litmus paper
(iii) Flammability


(3bi)
Sodium trioxocarbonate (IV) (Na?CO?) functions as a base because it reacts with acids to neutralize them, forming a salt, water, and carbon dioxide gas.

(3bii)
Silver trioxonitrate (V) (AgNO?) is light-sensitive and decomposes when exposed to light, releasing elemental silver and nitrogen oxides. Storing it in an amber-colored bottle protects it from light, preventing decomposition and maintaining its stability.


0 Response
FORUM POST LOCKED FOR COMMENTING

2025 JAMB CBT EXPO RUNS
2025 WAEC EXPO RUNS
2025 NECO EXPO RUNS
2025 NABTEB EXPO RUNS

Ads; Click Here Now to See How to Make Cool Cash Here in Examface.net

Click Here Now to Join Our WhatsApp Group

Contact Mr.Prof
| |

best exam expo site / legit waec expo runz