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