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Graphite is a soft solid lubricant extre...

Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite

A

has carbon stoms anrranged in large plaens of ringes of strongly boun caraon atoms with weak inteplanar bonda

B

is a non -cystallline substane

C

is an allotropic form of carbon

D

has molecules of variable molecular masses like polymers

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The correct Answer is:
A
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CENGAGE CHEMISTRY ENGLISH-P-BLOCK GROUP 14 - CARBON FAMILY-Exercises (Single Correct)
  1. Softening of lead means:

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  2. Bond energy is highest for :

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  3. Graphite is a soft solid lubricant extremely difficult to melt. The re...

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  4. Beryllium and aluminium carbides contain

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  5. What is the formula of carbon suboxide ?

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  6. Which of the following halide fo carbon is used as refrigerant ?

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  7. CO is absorbed by:

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  8. Carbogen is given to pneumonia patients and victims of ( CO) poisonin...

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  9. In SiO(4)^(4-) the tetrahedral molecule two oxygen atoms are shared in

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  10. The structure and hybridisation of Si(CH(3))(4) is

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  11. Structural units of ice and dry ice are , respectively .

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  12. A fuel will have a large fuel value when one gram of it on heating giv...

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  13. Which of the following oxides has a three-dimensional structure ?

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  14. C Cl(4) does not show hydrolysis but SiCl(4) is readily hydrolysed bec...

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  15. The number and type of bonds between two carbon atoms in calcium carbi...

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  16. The anhydride of carbonic acid is :

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  17. Which of the following statements is not correet ?

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  18. C(60) an allotrope of carbon contains

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  19. C(60) can be regarded asabyge ball made up of :

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  20. Often a ground glass stopper gets stuck in the neck of a glass bottle ...

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