Chemistry Fsc Part 1 Online Test With Answers

Chemistry Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 Which order has constant half life First Zero Second Third
2 Half life formula for 1st order reaction is 0.693 /k k x t 1 /k 2 k
3 Half life of zero order reaction is Constant Proportional to [A] Inversely proportional with [A] Independent to rate constant
4 Half life of first order reaction  Become zero Increases with [A] Is independent of [A] Decreases with [A]
5 Half life is time is which Rate becomes zero Concentration reduces to 1/4 Concentratio reduces to half Product is half formed
6 First order reactions are best studies using. log [A] vs time Pressure vs time [A] vs time Titriation
7 Rate constant dependent of Time Temperature Concentration Catalyst
8 Reaction rate by conductometry depends on Ionic conductivity Pressure colour Temperature
9 In color change reactions, which method is best Colorimetry Titration Conductometry Manometry
10 For gaseous reactions, rate is ofter monitored by  Mass change pH change Pressure change Temperature change
11 Rate constant can be determined by  Titration spectroscopy conductometry all of these
12 Which unit is common for all orders mol dm-3 No common unit J mol -1 s-1
13 k has unit s-1 for First order Second order Third order zero order
14 Unit of k for second order reaction is mol dm-3 s-1 mol-1 dm3 s-1 mol -2 dm<sup>6</sup> s-1
15 Unit of rate constant for first order reaction is mol dm-3 mol -1 dm3 s-1 s-1 J mol-1
16 Unit of rae constant for zero order reaction is mol dm-3 s-1 s-1 mol -1 dm<sup> 3</sup> s-1 mol<sup> -2</sup> dm<sup>6</sup> s-1
17 Units of rate constant depend on Order of reaction Temperature Surface area Pressure
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