A) Calcium B) Colgate C) Carbon D) Aluminium E) Copper
A) 4 B) 2 C) 3 D) 5 E) 6
A) isotopy B) ionization C) eclipse D) hybridization E) allotropy
A) crystalline B) amorphous C) non-amorphous D) solid E) non-crystalline
A) wood charcoal B) diamond C) coal D) sugar charcoal E) animal charcoal
A) Oxygen B) Coke C) Diamond D) non of the above E) Graphite
A) Charcoal B) Diamond C) Graphite D) Coal tar E) Wood charcoal
A) all of the above B) charcoal C) graphite D) wood E) diamond
A) diamond B) wood C) coke D) graphite E) coal
A) Sharpener B) Diamond C) Iron D) Graphite E) Copper
A) nonagonal B) pentagonal C) butagonal D) octahedral E) hexagonal
A) all of the above B) hexahedral C) decahedral D) heptahedral E) octahedral
A) colourless B) white C) blue D) pink E) purple
A) covalent B) metallic C) ionic D) dative E) electrovalent
A) graphite B) none of the above C) diamond D) wood E) coal
A) calcium tetraoxophosphate (v) B) pottasium C) sulphur D) phosphorus E) hydrogen
A) 0-8 B) 1-9 C) 6-7 D) 0-7 E) 1-8
A) apex B) vertical C) horizontal D) lateral E) upside down
A) vertical B) horizontal C) lateral D) backward E) apex
A) 1-7 B) 0-8 C) 1-5 D) 1-8 E) 0-7
A) transition B) upcoming C) reversible D) gone E) reversal
A) group 3 B) group1 C) group 4 D) group 0 E) group 2
A) group 6 B) group 9 C) group 7 D) group 8 E) group 5
A) group 3 B) group 2 C) group10 D) group 0 E) group 5
A) 4 B) 3 C) 5 D) 2 E) 6
A) 74gmol B) 47gmol C) 74.5gmol D) 24gmol E) 58.5gmol
A) Nitrogen B) Carbon(iv)oxide C) Water vapour D) Oxygen E) Noble vapour
A) Gas B) Smoke C) Air D) Breeze E) Whirlwind
A) 78% B) 21% C) 1% D) variable E) 0.03%
A) The composition of air cannot be represented by a chemical formula as in the case of a compound B) The constituents of air still retain their individual properties C) Air is solid at room temperature D) If the appropriate proportions of each of the different consituents of air are mixed together under ordinary conditions, there will be no evidence of any chemical combination such as heat production or volume change E) The constituent of air can be separated easily by physical methods
A) Flaming B) Melting C) Corrosion D) Rusting E) Method
A) oxygen and water B) chlorine and water C) oxygen and salt D) oxygen and salt E) sulphur and air
A) galvanising B) electroplating C) greasing and oiling D) painting E) drying
A) Galvanising B) Electroplating C) Oiling D) Painting E) Greasing
A) painting B) oiling C) enamel D) plating E) platinum
A) i do not know B) all of the above C) yes D) no E) maybe
A) Reaction B) Chemical C) Solvent D) Spirit E) Catalyst
A) It cannot start a reaction B) It has no effect on the equilibrum position of a reversible reaction C) It will affect the rate of a reaction even though it is present in a very small amount D) It is specific in action E) A catalyst can affect the types of products formed in a reaction
A) Order of reaction B) Order the reaction C) State of reactant D) Condition of reaction E) Order of reactant
A) 0 B) 3 C) 1 D) 2 E) 9
A) third B) zero C) one D) nine E) second
A) first B) second C) third D) zero E) nine
A) second B) third C) zero D) nine E) one
A) surface area of the reactants B) nature of the reactants C) presence of catalyst D) colour of the reactants E) presence of light
A) Collision theory B) Thermodynamics theory C) Cooking theory D) Coiling theory E) Colliding theory
A) Catalase reaction B) reversible reaction C) Exothermic reaction D) Endothermic reaction E) all of the above
A) cold B) heat C) air D) smoke E) all of the above
A) Economics B) Chemistry C) Yoruba D) Biology E) Physics
A) Matter B) Weight C) Mass D) Heavy object E) Mole
A) Mass B) Weight C) Science D) Matter E) Molecule
A) 5 B) 2 C) 7 D) 3 E) 1
A) NH3 B) None of the above C) NH4 D) NH E) NH2
A) All of the above B) Matter C) Molecule D) Mass E) Atom
A) 13 B) 12 C) 16 D) 14 E) 15
A) 13 B) 16 C) 14 D) 15 E) 12
A) 9 B) 8 C) 10 D) 11 E) 12
A) 1.00moles B) 0.04moles C) 2.00m0les D) 0.10moles E) 0.20moles
A) 9 B) 7 C) 6 D) 4 E) 0
A) Ag B) S C) Al D) Si E) Pb
A) K B) Pb C) Po D) P E) None of the above |