1st PUC Chemistry Series-3

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PUC Science 1st Year Chemistry Series-3 quiz

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Created on By wefru

1st PUC Chemistry Series 3

TEST YOUR KNOWLEDGE OF SCIENCE

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Q21 Which of the following aqueous solution will be the best conductor of electricity?

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Q22 . In 0.10 M aqueous solution of pyridine (C5H5N), find the percentage of pyridine that forms pyridinium ion (C5H5N+H) (Kb for C5H5N = 1.7 x 10-9 )

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Q.23

Find the equilibrium constant of the reaction

If the equilibrium constant for the following reactions are given

Chemical Equilibrium

Chemical Equilibrium

Chemical Equilibrium

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Q.24 5. Highest pH will be recorded for which of the following solutions if they are equimolar

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Q.25

The equilibrium constant is 278 for the reaction
Chemical Equilibrium

at the same temperature, what will be the equilibrium constant for the following reaction?

Chemical Equilibrium

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Q.26 7. What will be the pH of a buffer solution having an equal concentration of B and HB (Kb = 10-10 for B)

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Q.26 7. What will be the pH of a buffer solution having an equal concentration of B and HB (Kb = 10-10 for B)

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Q.28On increasing the concentration of reactants in a reversible reaction, then equilibrium constant will

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Q.29Find the conjugate acid of NH2

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Q.30 Find the successive elements of the periodic table with ionisation energies, 2372, 520 and 890 kJ per mol respectively

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