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Derive the formula to calculate the dens...

Derive the formula to calculate the density of a cubic crystal of elements.

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Derive the formula to calculate the density of a cubic crystals of ionic compounds.

A cubic crystal possesses :

What are the different types of cubic crystal systems.

Name the types of lattice in a cubic crystal.

The total number of symmetry in a cubic crystal is :

An element X with an atomic mass of 60 "g mol"^(-1) has density of 6.23 "g cm"^(-3) . If the edge length of its cubic unit cell is 400 pm, identify the cubic unit cell. Calculate the radius of an atom of this element.

MODERN PUBLICATION-TEST PAPER 2-EXERCISE
  1. What are enzymes ?

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  2. Write the mechanism of the reaction of HI with methoxy methane.

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  3. Derive the formula to calculate the density of a cubic crystal of elem...

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  4. State henry's law.

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  5. Give reason. Why in chemistry of all the lanthanoids is quite similar?

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  6. Although chlorine is an electron withdrawing group, yet is op directin...

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  7. Although phenoxide ion has more number of resonating structures than c...

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  8. What happens when formaldehyde reacts with HCN?

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  9. How can a carboxylic acid be converted to an aldehyde in two steps?

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  10. How can you prepare benzoic acid from Ethyl benzene? Give equations on...

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  11. Why should medicines not be taken without consulting doctors ?

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  12. Derive an expression for the rate constant of first order reaction. Gi...

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  13. Derive an expression for the rate constant of first order reaction. Gi...

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  14. State and explain Faraday's laws of electrolysis. 0.2015g of copper we...

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  15. State and exlain Kohlarausch.s law of independent migration of ions . ...

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  16. Write notes on : Allotropes of sulphur

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  17. Give a brief account of Werner's co- ordination theory.

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  18. Write short notes on Hofmam's bromamide reaction.

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  19. Discuss Reimer-Tiemann reaction.

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  20. Write short notes on: Aldol condensation reaction.

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