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State Hess's law. Give two applications ...

State Hess's law. Give two applications of it.

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OMEGA PUBLICATION-SAMPLE QUESTION PAPER -I (PUNJAB)-QUESTION
  1. Explain the action of acidic buffer.

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  2. What is the difference between e.m.f. and potential diffrence?

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  3. State Hess's law. Give two applications of it.

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  4. Explain the deviations of real gases from ideal gases.

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  5. Explain Dalton's law of partial pressures and Charles’ law.

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  6. What are electrophiles and nucleophiies? Give two examples in each cas...

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  7. Describe permutit process for softening hard water.

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  8. Give the theory of manufacture of washing soda by Solvay’s process.

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  9. Alkali metals give blue solutions in ammonia. Why?

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  10. Calculate the volume of 4.4 g of CO2 at S.T.P.

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  11. Define empirical formula and molecular formula ? How are they related ...

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  12. Balance the following equations by oxidation no. method. MnO4^(-) + Fe...

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  13. Balance the following equations by oxidation no. method. S + HNO3 rarr...

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  14. Define oxidising agent and reducing agent on the basis of oxidation nu...

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  15. Distinguish between intermolecular and intramolecular H-bonds.

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  16. Distinguish between sigma and pi orbitals.

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  17. What are hybridisation states of each carbon atom in the following com...

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  18. Explain the shape of C2H4 molecule on the basis of hybridisation.

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  19. Describe orbital picture of benzene.

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  20. How will you convert benzene into (a) Chlorobenzene (b) Nitrobenze...

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