2nd PUC Chemistry Series 3

PUC Science 2nd Year Chemistry Series-3 quiz

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2nd PUC Chemistry Series 3

TEST YOUR KNOWLEDGE OF SCIENCE

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21. The rate of a certain hypothetical reaction
A + B + C → products
is given by r = d[A]dtK[A]1/2[B]1/3[C]1/4. The order of the reaction is

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22.  In the formation of S02 by contact process;
2SO2 + O2 → 2SO3, the rate of reaction was measured as d[O2]dt = 2.5 × 10-4 mol L-1s-1. at
The rate of formation of of S03 will be

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23.  For a chemical reaction A→B, it is found that the rate of reaction doubles when the concentration of A is increased four times. The order of reaction is

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24. The half life of the first order reaction having rate constant K = 1.7 x 10-5s-1 is

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25.  In Freundlich adsorption isotherm x/m = Kp1/n, the value of ‘n’ at low pressure is

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26. According to adsorption theory of catalysis, the speed of the reaction increases because

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27. Which shape selective catalyst is used to convert alcohol to gasoline?

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28. When a small amount of FeCl3 is added to a freshly precipitated Fe(OH)3, b reddish brown colloidal solution is obtained. This pheno¬menon is known as

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29. Lyophillic colloids are stable due to

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30.  Cottrell precipitator is used to

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