Chemistry Fsc Part 1 Chapter 11 Online Test With Answers

Chemistry Fsc Part 1 Chapter 11 Online Test

Sr. # Questions Answers Choice
1 When a chemical reaction is completed. Instantaneous rate > average rate Instantaneous rate = average rate Instantaneous rate is zero Both average and instantaneous rates become zero
2 Which one of the following statements is incorrect. Enzymes are protein in nature Enzymes are catalyst Enzymes can catalyze any reaction Urease is an enzyme
3 The substance which decrease the activity of a catalyst is called. Promoter Activator Inhibitor Positive catalyst
4 A substance which itself is not a catalyst but increases the activity of a catalyst is called. Promoter Poisoner Inhibitor Enzyme
5 A type of meals are usually used as catalyst. Coinage metal Alkali metals Transition metals alkaline earth metals
6 Which statement is incorrect about activated complex Short lived Maximum energy Unstable combination of atoms Less energy than Ea
7 When a reaction occurs in many steps than the slowest step is. Mechanism step Rate determining step enthalpy determining step None of the above
8 Which statement is incorrect about order of reaction It cannot be determined experimentally It is determined experimentally Sum of exponents in rate equation It can have fraction value
9 Photosynthesis a photochemical reaction has order of reaction 0 1 2 Fractional order
10 When a chemical reaction is completed the Instantaneous rate > average rate Instantaneous rate = average rate Instantaneous rate is zero Both average and instantaneous rates become zero
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