A) Free energy B) Energy of formation C) Activation energy D) Energy of reaction
A) The fewer the collision the faster the rate of chemical reaction rate B) All collisions of reactants are effective C) Reactant must collide with a certain amount of energy to form products D) Reactants collide more frequently to bring about a reduction in the rate of reaction
A) Fourth order reaction B) Zero order reaction C) Second order reaction D) First order reaction
A) Second order reaction B) Fourth order reaction C) Zero order reaction D) First order reaction
A) Second order reaction B) Zero order reaction C) First order reaction D) Fourth order reaction
A) Order reaction B) Collision C) Reaction mechanism D) Molecularity
A) Reaction mechanism B) Rate of reaction C) Molecularity D) Rate determining step
A) Rate of reaction B) Order of reaction C) Photochemical reaction D) Collision
A) Catalyst B) Enthalpy C) Energetics D) Activation energy
A) Energy barrier B) Activated complex C) Reaction profile D) Rate curve
A) Calcium B) Copper C) Magnesium D) Aluminium
A) Carbon (II) oxide B) Oxygen C) Nitrogen (IV) oxide D) Nitrogen
A) Be and Mg B) Si and Pb C) Zn and Al D) Na and K
A) NaHCO3 B) CaCO3 C) KClO3 D) NaNO3
A) Bleaching powder B) Trioxochlorate (v) salt. C) Oxochlorate (I) acid D) Chlorinated water
A) It is less dense than oxygen B) It is fairly soluble in water C) It thermally decomposes before it rekindles glowing splint. D) It is only laughing gas.
A) Oxygen B) Water vapour C) Carbon (iv) oxide D) Rare gases
A) NaClO, NaCl, and H2O B) NaClO3 and H2O C) NaClO3, NaCl, and H2O D) NaClO3, NaClO, and H2
A) Oxygen B) Hydrogen C) Nitrogen D) Chlorine
A) Cu B) Au C) Na D) Ag
A) A reaction where a substance breaks down into two or more substances due to heat B) A reaction where a substance speeds up the reaction due to heat C) A reaction where two substances combine to form a new substance due to heat D) A reaction where a substance is removed from a mixture due to heat
A) Zeroth law of thermodynamics B) Third law of thermodynamics C) First law of thermodynamics D) Second law of thermodynamics
A) A reaction where a substance is removed from a mixture B) A reaction where a substance speeds up the reaction without being consumed C) A reaction where two substances combine to form a new substance D) A reaction where a substance slows down the reaction
A) Endothermic reactions absorb heat, while exothermic reactions release heat B) Exothermic reactions are always endothermic C) Endothermic reactions release heat, while exothermic reactions absorb heat D) Endothermic reactions are always exothermic
A) K = [A] / [B] B) K = [A] + [B] C) K = [A] - [B] D) K = [A] x [B]
A) It decreases B) It increases C) It remains constant D) It fluctuates
A) K is directly proportional to the rate constant B) K is equal to the rate constant C) K is unrelated to the rate constant D) K is inversely proportional to the rate constant
A) Pressure (atm) B) Temperature (K) C) Molarity (M) D) No unit
A) K = [products] / [reactants] B) K = [products] x [reactants] C) K = [reactants] / [products] D) K = [reactants] x [products]
A) A change in conditions will shift the equilibrium in the direction that tends to counteract the change. B) The rate of a reaction is always constant C) The equilibrium constant is always constant D) The concentration of reactants is always greater than the concentration of products
A) By the Solvay process B) By the Haber process C) By the Bosch process D) By the Ostwald process
A) Nitrous oxide (N2O) B) Nitrogen trioxide (N2O3) C) Nitrogen dioxide (NO2) D) Nitric oxide (NO)
A) The process by which nitrogen is cycled between the atmosphere, soil, and living organisms B) The process by which nitrogen is fixed into the soil C) The process by which nitrogen is converted into its oxides D) The process by which nitrogen is converted into ammonia
A) They are all metals B) They are all nonmetals C) They are all noble gases D) They are all transition metals
A) Solution B) Gas C) Liquid D) Solid
A) As a building material B) As a food preservative C) As a fertilizer D) As a medicine
A) They are highly reactive B) They are noble gases C) They are nonreactive D) They are metalloids
A) Melting point B) Boiling point C) Electronegativity D) Density
A) Oxidation of hydrogen chloride B) Electrolysis of sodium chloride C) Reduction of sodium chloride D) Distillation of seawater
A) Chlorine water B) Calcium chloride C) Sodium chloride D) Hydrogen chloride |