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Metallic gold (Au) crystallises in face-...

Metallic gold (Au) crystallises in face-centred cubic lattice. What is the number of unit cells in 2.0g of gold? [Ae=197]

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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2018-EXAMPLE
  1. What is condensation polymerisation? Write with an example.

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  2. What is the total number of voids in cubic close packed lattice?

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  3. Metallic gold (Au) crystallises in face-centred cubic lattice. What is...

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  4. What is a p-type semiconductor?

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  10. Write balanced chemcial equations for the preparation fo pure alumina ...

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  12. The general electronic configuration of d-block elements is

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  14. Write the structure of product(s) of the following reaction.

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  15. In which of the following two compounds SN2 reaction is laster? Give r...

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  18. How would you convert?

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  20. Write the reagents for the following conversions:

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