by Sunday | May 12 | Chemistry WAEC
A. 200 cm³ B. 400 cm³ C. 600cm³ D. 700cm³ Correct Answer: Option B B. 400 cm³ Explanation 2H2(g) + O2(g) → 2H2Og 2V IV 2V 600cm³ 300cm³ 600cm³ The volume of hydrogen left over = 1000 – 600 =...
by Sunday | May 12 | Chemistry WAEC
A. 1 B. 2 C. 4 D. 6 Correct Answer: Option D D. 6 Explanation One mole of aluminium from aluminium oxide gives three elecrrons. Two moles of aluminium from aluminium oxide give six electrons
by Sunday | May 12 | Chemistry WAEC
A. Copper (ll) trioxocarbonate (IV) B. Potassium hydrogentrioxocarbonate (lV) C. Zinc granules D. Sodium chloride Correct Answer: Option D D. Sodium chloride
by Sunday | May 12 | Chemistry WAEC
A. 4,1, 2 B. 1, 2,1 C. 2,1, 2 D. 4, 2,1 Correct Answer: Option D D. 4, 2,1
by Sunday | May 12 | Chemistry WAEC
A. Lead (ll) trioxocarbonate (lV) B. Barium trioxocarbonate (IV) C. Sodium trioxocarbnate (IV) D. Calcium trioxocarbonate (IV) Correct Answer: Option C C. Sodium trioxocarbnate (IV)