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Give reason: H2O is a liquid while H2S i...

Give reason: `H_2O` is a liquid while `H_2S` is a gas at room temperature.

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CHETANA PUBLICATION-SOLID STATE-EXERCISE
  1. Give reason: H2O is a liquid while H2S is a gas at room temperature.

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  2. A compound having bcc geometry has atomic mass 50. Calculate the densi...

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  3. An element has a body centred cubic structure with a cell edge of 288 ...

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  4. X-ray diffraction studies show that copper crystallizes in an fcc unit...

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  5. A compound forms hexagonal close packed structure. What is the total n...

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  6. Atoms of element B form hcp lattice and those of the element A occupy ...

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  7. Gold occurs as face centred cube and has a density of 19.30 kg dm. Cal...

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  8. What is the ration of packing effciency in fcc and bcc crystals of the...

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  9. Sodium metal crystalizes in bcc structure with the edge length of unit...

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  10. Niobium forms bcc structure. The density of niobium is 8.55 g cm^-3 an...

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  11. Molecular solids are

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  12. Which of the following is not correct?

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  13. Is solids, the constitutent particles may be

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  14. A single substance that exists in two or more forms is called.

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  15. Graphite is a

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  16. Diamond is a

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  17. The ratio of close packed atoms to tetrahedral holes in cubic pakcing ...

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  18. The ratio of closed packed atoms to octahedral holes in hexagonal clos...

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  19. The number of tetrahedral sites per sphere in cpp structure is

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  20. The number of tetrahedral sites per sphere in cpp structure is

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  21. The packing efficiency for a body centred cubic Structure is

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