A) A substance that reacts with another substance to form a new compound. B) A substance that stops a chemical reaction from occurring. C) A substance that increases the rate of a chemical reaction without being consumed in the process. D) A substance that decreases the rate of a chemical reaction.
A) A lipid molecule B) A biological catalyst C) A structural protein D) A neurotransmitter
A) To replace the catalyst in a reaction B) To enhance the catalytic activity of a catalyst C) To inhibit the catalytic activity of a catalyst D) To change the chemical nature of the catalyst
A) Lowering the activation energy and increasing reaction rates B) Increasing the production cost C) Causing more waste to be generated D) Making the reactions more hazardous
A) When a reactant of a reaction accelerates the reaction B) When a catalyst is deactivated by the reaction mixture C) When a product of a reaction acts as a catalyst for that reaction D) When a byproduct of a reaction poisons the catalyst
A) Carbon nanotubes B) Silver C) Enzymes D) Magnesium oxide
A) To increase the fuel efficiency of the engine B) To reduce harmful emissions by converting them into less harmful substances C) To produce more greenhouse gases D) To increase engine power
A) Vessel size in which the reaction takes place B) Temperature of the surrounding environment C) Surface area of the catalyst D) Color of the catalyst
A) The ease of recycling the catalyst B) The ability of a catalyst to promote one specific reaction pathway over others C) The speed at which a catalyst degrades D) The cost of the catalyst used in a reaction
A) Solid catalysts are typically easier to separate from the reaction mixture B) Solid catalysts are never used in industrial processes C) Solid catalysts have a higher reaction selectivity D) Solid catalysts are always less efficient than homogeneous catalysts
A) Latin, meaning 'to speed up'. B) German, meaning 'to assist'. C) Greek, meaning 'loosen' or 'untie'. D) French, meaning 'to change'.
A) mole per second B) enzyme unit C) katal D) turnover number (TON)
A) turn over frequency B) enzyme unit C) katal D) turnover number (TON)
A) sulfur trioxide (SO3) B) sulfur dioxide (SO2) C) nitric oxide (NO) D) oxygen (O2)
A) Water B) Oxygen C) Hydrogen D) Carbon dioxide
A) Enzybiotics B) Synzymes C) Ribozymes D) Abzymes
A) Gottlieb Kirchhoff B) Wilhelm Ostwald C) Jöns Jakob Berzelius D) Vladimir Ipatieff
A) It stabilizes the transition state more than the starting material B) It changes the thermodynamic barrier C) It decreases the available energy from the environment D) It increases the difference in energy between starting materials and products
A) Acetic acid B) Benzene C) Ethanol D) High-fructose corn syrup
A) Vladimir Ipatieff B) Johann Wolfgang Döbereiner C) Gottlieb Kirchhoff D) Humphry Davy
A) Humphry Davy B) Johann Wolfgang Döbereiner C) Wilhelm Ostwald D) Elizabeth Fulhame
A) Sabatier reaction B) Water-gas shift reaction C) Fischer–Tropsch synthesis D) Steam reforming
A) NO + SO3 → NO2 + SO2 B) NO2 + SO2 → NO + SO3 C) 2 NO + O2 → 2 NO2 D) 2 SO2 + O2 → 2 SO3
A) Metal catalysts B) Acid–base catalysis C) Inorganic catalysts D) Biocatalysts
A) $700 billion B) $500 billion C) $900 billion D) $1 trillion
A) Levofloxacin B) Noyori asymmetric hydrogenation C) Hydroxyacetone D) (R)-1,2-Propandiol
A) Singlet oxygen B) Chlorine gas C) Hydrogen peroxide D) Nitric oxide
A) Eilhard Mitscherlich B) Johann Wolfgang Döbereiner C) Elizabeth Fulhame D) Humphry Davy
A) Enantioselective catalysis B) Hydrogenation with nickel catalyst C) Friedel–Crafts reactions D) Biocatalysis
A) Terephthalic acid B) Ammonia C) Acrylic acid D) Methanol
A) Elizabeth Fulhame B) Wilhelm Ostwald C) Jöns Jakob Berzelius D) Vladimir Ipatieff
A) Jöns Jakob Berzelius B) Gottlieb Kirchhoff C) Vladimir Ipatieff D) Wilhelm Ostwald
A) Organometallic catalysts B) Electrocatalysts C) Photocatalysts D) Biocatalysts
A) Sabatier reaction B) Fischer–Tropsch synthesis C) Water-gas shift reaction D) Carbonylation processes
A) Elizabeth Fulhame B) Jöns Jakob Berzelius C) Eilhard Mitscherlich D) Gottlieb Kirchhoff
A) 1811 B) 1835 C) 1880s D) 1794 |