LADOKE AKINTOLA UNIVERSITY
2010
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1. E lectrophiles are
A. Electron deficient species
B. Electron rich species
C. Free radical species
D. Negatively charged species
2. T he basic unit of synthentic rubber is
A. Isoprene
B. Pentane
C. Butadiene
D. Butene
3. T he emperical formula of a hydrocarbon that contains 93.3% carbon is
(C= 12, H= 13)
A. CH
B. CH 2
C. C 2 H
D. C 2 H 2
4. T he type of hybridization in all the carbon in the saturated hydrocarbon is
A. SP 3
B. SP 2
C. SP
D. PS 3
5. W hat are the oxidation number of manganese in the anions MnO 2- and MnO 4- ?
A. +7 and +6
B. +2 and +7
C. +4 and +4
D. +2 and +3
6. T he number of electrons in the K, L, M and N shells of calcium are respectively
A. 2, 8, 8, 2
B. 2, 2, 8, 8
C. 2, 8, 2, 8
D. 8, 8, 2, 2
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