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Different forms of silica such as quartz...

Different forms of silica such as quartz, tridymite and cristobalite
are as follows :
`underset ((SiO_2)) (Quartz) overset (870^@C)(rarr)underset ((SiO_2)) (Tridymite ) overset(1470^@C) (hArr)underset((SiO_2)) (Cristiobalite)`. The structure possessed is

A

Sheet silicate

B

Three-Dimensional silicate

C

Chain silicate

D

Cycilc or ring silicate

Text Solution

Verified by Experts

The correct Answer is:
B
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CENGAGE CHEMISTRY ENGLISH-P-BLOCK GROUP 14 - CARBON FAMILY-Exercises (Single Correct)
  1. Silica is reacted with sodium carbonate . What is the gas liberated ?

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  2. The straight chain polymer is formed by

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  3. K2 C6 O6 is called .

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  4. Carbon suboxide C3 O2 (O = C=C=C=O) is obtaind as a corlurless gas by ...

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  5. What of the following anions are present in clay ?

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  6. Which one of the following anions is present in the chain strucutre si...

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  7. Double chain structures are present in asbestos . Which of the anion a...

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  8. Different forms of silica such as quartz, tridymite and cristobalite ...

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  9. Pyro-silicates are formed by

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  10. When a lead salt is heated with sodium carbonate in charcoal cavity it...

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  11. The plague of tin is the :

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  12. The substance used as a smoke screen in warfare is .

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  13. Carbon phosgene , COCl2 is prepared by .

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  14. Lead solution may be titrated with satndard EDTA at ph=6 using which ...

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  15. Fusible alloys of lead with Bi and Si used for making soft solder , el...

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  16. Which of the following reaction does not take place ?

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  17. Island structure is possessed bu .

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  18. Which of the following structure is similar to graphite.

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  19. Which of these is not a monomer for a high molecular mass silicon poly...

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  20. The basic structural unit of silicates is

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