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Explain the reaction of diborane when it...

Explain the reaction of diborane when it is exposed to air?

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A metal X is stored under kerosene. When a small piece of it is left open in the air, it catches fire. When the product formed is dissolved in water it turns red litmus blue. a. Name the metal X. b. Write the chemical equation for the rection when it is exposed to air and when the product is dissoolved in water. c. Explain the process by which the metal is obtaned from its molten chloride.

OSWAAL PUBLICATION-Sample Paper 1 -Exercise
  1. What is the chemical formula of plaster of paris?

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  2. Between boron and aluminium,boron cannot have covalency more than 4 bu...

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  3. Explain the reaction of diborane when it is exposed to air?

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  4. Define limiting reagent.

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  5. Define molarity and molality.

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  6. CaCO3 decomposes to give CO2 gas according to the equation. CaCO3(s)...

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  7. The atomic number and atomic mass of iron are 26 and 56 respectively....

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  8. Calculate the wave number of the spectral line of shortest wavelength ...

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  9. For the element with atomic number 24:Write the electronic configurati...

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  10. For the element with atomic number 24: Write the value of n and l for ...

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  11. For the element with atomic number 24: How many unpaired electorns are...

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  12. State Pauli's exclusion principle. Give the possible values of l for n...

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  13. Write three postulates of Kinetic theory of gases.

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  14. Two gases A and B have critical temperatures as 250 and 125 K respecti...

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  15. What is an intensive property? Give an example.

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  16. 2 mole of an ideal gas undergoes a reversible and isothermal expansion...

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  17. State Hess's law of constant heat summation.

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  18. Write Gibbs equation. Usding DeltaG, how do you decide whether a react...

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  19. Define chemical equilibrium.

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  20. Write the expression for equilibrium constant , Kc for the reaction. ...

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