IJMB 2025 CHEMISTRY PAPER I

IJMB 2025 CHEMISTRY PAPER I

IJMB 2025 CRS PAPER III QUESTIONS

 

IJMB 2025 CRS PAPER III QUESTIONS

IJMB CHEMISTRY PAPER I
NUMBER 2

(I)Quicklime (calcium oxide) in construction and manufacturing
; ii) Magnesium hydroxide in antacids and laxatives
iii) Calcium carbonate in cement and as a food additive;
iv) Barium sulfate in medical imaging;
v) Magnesium in fireworks and flares.

IJMB CHEMISTRY NUMBER 3
(a)True
(b) False
(c) True
(d) False
(e) True

*IJMB CHEMISTRY I*

*NUMBER NINE*

(9a)
A = Oxygen (O₂)
B = Calcium oxide (CaO)

(9b)
(i) 2Ca(s) + O₂(g) –> 2CaO(s)
(ii) CaO(s) + H₂O(l) –> Ca(OH)₂(aq)

 

 

IJMB 2025 CHEMISTRY PAPER I

 

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