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How is diborane prepared in the laborato...

How is diborane prepared in the laboratory?

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OSWAAL PUBLICATION-Solved Paper 2020-2-Exercise
  1. Explain the non existence of helium molecule on the basis of molecular...

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  2. Expalin the action of carbondioxide in lime water.

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  3. How is diborane prepared in the laboratory?

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  4. State Markowniff's rule with an example.

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  5. Mention any two necerssaary conditions for any system to be aromatic.

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  6. Write any two common chemical of photochemical smog.

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  7. What do you mean by the term electron gain enthalpy? How does electron...

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  8. Distinguish between a sigma and a pi bond.

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  9. Define dipole moment.

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  10. Write any three postulates of VSEPR theory.

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  11. Calculate bond order of Oxygen molecule and mention its magnetic prope...

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  12. Balance the redox reaction using oxidatin numver method: MnO4^-(aq)rar...

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  13. What is the chemical used in Clarke's proceststo remove temporary hard...

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  14. Give the preparation of sodium hydroxide by Caster-Kellner-Cell method...

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  15. Mention any 2 difference between diamond and graphite.

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  16. Write the structure of inorganic benzene.

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  17. Find the empirical formula of a compound which contain 33.18% of carbo...

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  18. State Avogadro law and write mathematical form.

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  19. How many significant figures are there in the number,0.0025?

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  20. Write the three postulates of Bohr.s atomic model.

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