by Sunday | Sep 16 | Chemistry JAMB
A. 7 B. 6 C. 5 D. 4 Correct Answer: Option B – 6 Explanation The oxidation state of K2Cr2O7 is +6. +2+2x+(−2×7)=0 2x=12 x=+6
by Sunday | Sep 16 | Chemistry JAMB
A. CH2O B. C3H6O3 C. C6H12O6 D. C6H12O3 Correct Answer: Option C – C6H12O6 Explanation C = 40%, 40/12 = 3.33 H = 6.7%, 6.7/1 = 6.7 O = 53.3%, 53.3/16 = 3.33 C = 3.33/3.33 = 1 H = 6.7/3.33 = 2 O = 3.33/3.33 = 1 (CH2O)n = 180 (12 + 2 + 16)n = 180 30n = 180 n = 6 =...
by Sunday | Sep 16 | Chemistry JAMB
A. Bomb calorimeter B. Catalytic cracker C. Fractionating column D. Thermometer Correct Answer: Option C – Fractionating column Explanation Fractionating column contains petrol with different densities.
by Sunday | Sep 16 | Chemistry JAMB
A. Salt B. Atom C. Ion D. Molecule Correct Answer: Option A – Salt Explanation Salt is a chemical used for varieties of purposes, so it’s not part of matter, Atom being the smallest part of molecule and ion are charge which is part of...
by Sunday | Sep 16 | Chemistry JAMB
C6H14 A. 4 B. 5 C. 2 D. 3 Correct Answer: Option B = 5 Explanation The number of isomers C6H14 is 5.
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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