by Sunday | Sep 16 | Chemistry JAMB
A. carbon B. carbon(iv)oxide C. ethane D. ethanol Correct Answer: Option A = carbon Explanation Carbon concentration of 4 will not give precipitate heating.
by Sunday | Sep 16 | Chemistry JAMB
A. oxygen B. chlorine C. nitrogen D. hydrogen Correct Answer: Option A – oxygen Explanation Oxygen is a substance that is used to remove impurities from pig iron.
by Sunday | Sep 16 | Chemistry JAMB
A. 135.0cm³ B. 150.0cm³ C. 45.0cm³ D. 90.0cm³ Correct Answer: Option D – 90.0cm³ Explanation CH4(g) + 2O2(g) → 2H2O(g) 1 volume of methane will react with 90cm³of oxygen at S.T.P
by Sunday | Sep 16 | Chemistry JAMB
A. electroplating B. Arc-welding C. reducing and mixture of their metallic D. cooking a molten of the metals Correct Answer: Option D – cooking a molten of the metals Explanation Alloy is a metal that consists of two or more metals mixed together e.g. is mass...
by Sunday | Sep 16 | Chemistry JAMB
A. 1s² 2s² 2p6 3s² 3p¹ B. 1s² 2s² 2p4 3p¹ 3s¹ C. 1s² 2s² 2p6 3s² 3p³ D. 1s² 2s² 2p6 3s² 3p4 Correct Answer: Option A – 1s² 2s² 2p6 3s² 3p¹