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2025 WAEC Chemistry Practical Answers [ALT. A & B]
Get Free Live 2025 WAEC May/June Chemistry 3 (Practical) (Alternative A & B) (1st & 2nd Set) Specimen Questions and Answers for WASSCE for School Candidates Free of Charge | WAEC May/June Chemistry Practical Free EXPO Room (20th May, 2025).
WAEC May/June 2025 CHEMISTRY PRACTICAL FREE ANSWER ROOM [School Candidates]

Tuesday, 20th May 2025
Chemistry 3 (Practical) (Alternative A) 9:30am – 11:30am (1st Set)
Chemistry 3 (Practical) (Alternative A) 12:00pm – 2:00pm (2nd Set)
 
Tuesday, 17th June 2025
Chemistry 3 (Practical) (Alternative B) 9:30am – 11:30am (1st Set)
Chemistry 3 (Practical)(Alternative B) 12:00pm – 2:00pm (2nd Set)

2025 WAEC CHEMISTRY PRACTICAL ALTERNATIVE B ANSWERS | 17TH JUNE, 2025



(3a) 
MnO₂(s):
- Black in colour

(3b) 
Starch iodide paper on exposure to Cl₂:
- Blue-black colour 

(3c) 
Freshly prepared FeSO₄(aq):
- Pale green colour


2025 WAEC CHEMISTRY PRACTICAL ALTERNATIVE ANSWERS | 20TH MAY, 2025



 
 

 (3a)
Ammonia gas (NH₃).

(3b)
(PICK ANY ONE)
Dip a glass rod in concentrated hydrochloric acid and introduce it into the gas jar containing R; the formation of white fumes confirms the presence of ammonia gas.

OR

Expose the gas to hydrogen chloride (HCl) gas to observe formation of white fumes

OR

Introduce a glass rod soaked in concentrated HCl acid into the jar containing the gas; the appearance of dense white fumes confirms the presence of ammonia

(3c)
 (NH₄)₂SO₄

(3d)
Ammonium tetraoxosulphate(VI)
  
 
RECOMMENDED: 2025 WAEC Chemistry Practical Specimen. 

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RECOMMENDED: 2025 WAEC Chemistry Practical Specimen.

ONLINE ANSWERS COMES 1hr After Exam Commences (KEEP REFRESHING THIS PAGE)


 
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TO SUBSCRIBE FOR 2025 WAEC CHEMISTRY PRACTICAL ANSWERS VIA LINK
  1. JUST GO OUT AND BUY MTN CARDS OF N600 (200 + 200 + 200 = 600)
  2. GO TO YOUR MESSAGE, TYPE THE CARD PINS CORRECTLY AND SEND TO 08107431933.
  3. DON'T CALL, JUST TEXT, IF THE CARDS PINS ARE VALID, A REPLY WILL BE SENT TO YOU CONFIRMING THAT YOU HAVE BEEN SUBSCRIBED.
  4. RELAX AND WAIT FOR YOUR ANSWERS 30MINUTES BEFORE EXAM STARTS OR AFTER EXAM STARTS.
  5. NB: DO NOT SEND USED CARD PINS OR YOUR NUMBER WILL BE BLACKLISTED.