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What other elements may be added to sili...

What other elements may be added to silicon to make electrons available for conduction of an electric current?

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Group 15 element, e.g., phosphorous.
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Assertion: If there is some gap between the conduction band and the valence band, electrons in the valence band all remain bound and no free electrons are available in the conduction band. Then the material is an insulator. Reason: Resistance of insulators is very low

CENGAGE CHEMISTRY-NCERT BASED EXERCISE-Short Answer Type Questions
  1. Name the compound that can be added to AgCl so as to produce cation va...

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  2. Which point defect does not change the density of AgCl crystals?

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  3. What other elements may be added to silicon to make electrons availabl...

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  4. What are the types of lattice imperfection found in crystals?

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  5. What is dislocation in the crystals

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  6. Which transition metal oxide has appearance and conductivity like that...

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  7. How is electrical conductivity caused in (a) semiconductors, (b) metal...

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  8. Name the compound which shows both electric and ferroelectric proporti...

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  9. Name the compound which shows anti-ferroelectric property.

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  10. When and why is molality preferred over molarity in handling solution ...

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  11. What is the effect of temperature on molarity of a solution?

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  12. Whivh aqueous solution has higher concentration:1 molar or 1 molal sol...

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  13. Why vapour pressure of a liquid decreases when a non- volatile solute ...

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  14. 10dm^(3) of a liquid A was mixed with 10dm^(3) of liquid B . The volum...

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  15. What do you expect to happen when red blood corpuscles (RBCs) are plac...

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  16. What will happen to the boiling point of a solutin if the weight of th...

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  17. What type of liquids form ideal solution ?

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  18. How muCHM molecular mass of NaCl is obtained experimentally using coll...

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  19. Why an azeotropic mixture gets distilled without any CHMange is compos...

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  20. Why do radioactive element decay?

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