. A catalyst may be defined as: a) b) c) a substance that increases the order of
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Question
. A catalyst may be defined as: a) b) c) a substance that increases the order of a reaction a substance that increases the energy of activation of a reaction a substance that increases the temperature of a reaction d a substance that increases the rate of a reaction without being consumed 2. The reaction NO2 + CO NO + CO2 undergoes the mechanism: NO2 + NO2 NO, + NO (slow) NO3 + CO NO2 + CO2 (fast) The rate law for this reaction is: a) Rate k[NO2] b) Rate = k[NO2]2 d) Rate kINO ][NO] c) Rate = k[Norco] 3. The formula for calcium hydro apatite inbone is CadPO(OH)2 when the body produces acid forming metabolites from foods and drugs a) Calcium is deposited on bones c) Hydrogen ion is lost from bones b) Calcium is lost from bones d) hydroxide ion is deposited on the bone 4. Given [A]-[AJoe*, if a reaction has a rate constant of 0.010 s1 and an initial concentration of 1.0 M, what would be the approximate concentration after 60 seconds? a) 0.27 M b) 0.55 M c) 1.8 M d) 0.90 M 5. Alcohol metabolism is considered to be a) zero order c) second order b) first order d) third order 6. A protein catalyst that is specific for a particular reaction is a) an enzyme c) an active site b a substrate d) an activated complex 7. An unstable intermediate formed during the course of a reaction is b) a product a) a catalyst c) an enzyme an activated complex Aspartame which is used as an artificial sweetener, will form methanol in the stomach. When the methanol is oxidized by the liver it forms 8. d) ATP a) acetic acid b) formaldehyde )sodium chlorideExplanation / Answer
A) order of reaction does not depend upon cataylst it depends upon initial concentration except first order reaction.
B)Catalyst decreases the energy of reaction not increases it.
C)there is no link of temperature and cataylst in the mechanism of reaction.
D)yes , catalyst increases rate of reaction without being consumed.
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