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SiO2 is a solid while CO2 is a gas - exp...

`SiO_2` is a solid while `CO_2` is a gas - explain.

A

`SiO_(2)` contains weak vander Waal attraction while `CO_(2)` contains strong covalent bonds

B

Solid `SiO_(2)` has a three dimensional net work structure whereas `CO_(2)` contains discrete molecules.

C

Both contain strong covalent bonds

D

Both contain weak vander Waal attraction

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ELEMENTS OF CARBON FAMILY-OBJECTIVE EXERCISE - 2
  1. The hybridisation of C in diamond, graphite and ethyne is in the order

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  2. Silica is insoluble

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  3. SiO2 is a solid while CO2 is a gas - explain.

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  4. In hydrofluorosilicic acid the covalency of Si is

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  5. Regarding silica I) Quartz is amorphous form of silica II) Silica ...

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  6. SiO(2) reacts with which of the following to form water glass

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  7. Which of the following is a crystalline form of silica ?

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  8. Hybridisation of carbon atom in carbon dioxide is

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  9. Which of the following acts as a reducing agent ?

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  10. The C-O bond order in CO and CO(2) respectively

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  11. The high poisonous nature of CO is due to its

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  12. Carboxy haemoglobin is times more stable than oxyhaemoglobin

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  13. Which of the following statements is correct?

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  14. A colourless gas which burns with blue flame and reduces CuO to Cu is

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  15. Maximum covalency exhibited by Carbon and Silicon respectively are

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  16. Two tetravalent elements A and B form dioxides. Both react with NaOH ...

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  17. Correct statements regarding silicones are a) They are used in the...

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  18. Carbon can not expand its valency beyond 4, because

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  19. Among the following substituted silanes the one which will give rise t...

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  20. Silicones are used as water proof materials because they have

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