by Sunday | Mar 21 | Chemistry JAMB
A. Iron B. Sodium C. Alluminium D. Copper Correct Answer: Option D – Copper Explanation Aluminium sulfate is a salt soluble in water and is mainly used as a coagulating agent in the purification of drinking water. Copper demonstrated the greatest antimicrobial...
by Sunday | Mar 21 | Chemistry JAMB
A. 11.% B. 22.2% C. 10% D. 20% Correct Answer: Option C = 10% Explanation Mass of Solution = Mass of Solute + Mass of Solvent → 20g + 180g : Mass of Solution = 200g Mass Percent = Mass of Solute /Mass of Solution X 100 Mass percent = 20/200 X 100 Mass percent = 10%...
by Sunday | Mar 21 | Chemistry JAMB
A. Electrons and neutrons B. Electrons and protons C. Protons and neutrons D. None of the above Correct Answer: Option C – Protons and neutrons Explanation An atom nucleus is made up of protons and neutrons. An electron is a negatively charged subatomic particle...
by Sunday | Mar 21 | Chemistry JAMB
A. Na B. Ag C. Hg D. Fe Correct Answer: Option D = Fe Explanation The ideal metals to use for the task of recovering copper from an aqueous solution of copper sulphate are metals that are stronger reducing agents than copper but not reactive enough to react with the...
by Sunday | Mar 21 | Chemistry JAMB
A. Specific heat B. Thermal capacity C. Water equivalent D. None of the above Correct Answer: Option B – Thermal capacity Explanation Heat capacity or thermal capacity: The amount of heat to be supplied to an object to produce a unit change in its...
by Sunday | Mar 21 | Chemistry JAMB
A. RNA molecules B. Nucleotides C. DNA molecules D. Enzymes Correct Answer: Option C – DNA molecules Explanation DNA now has three distinct functions—genetics, immunological, and structural—that are widely disparate and variously dependent on the sugar phosphate...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.