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Regarding diamond I) C-C bond length i...

Regarding diamond
I) `C-C` bond length is `1.54Å`
II) It has least refractive index among solids
III) It has a 3-dimensional structure.
The correct combination is 

A

all are correct

B

I & III are correct

C

I & II are correct

D

II & III are correct

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ELEMENTS OF CARBON FAMILY-OBJECTIVE EXERCISE - 2
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  2. Identify the correct statement from the following I) Graphite is use...

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  3. Regarding diamond I) C-C bond length is 1.54Å II) It has least ref...

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  4. Which of the following is used as black pigment in black ink ?

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  7. Mark the oxide which is amphoteric in character

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  8. Which one of the following elements reacts with steam?

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  9. The hybrid orbitals with 33.33% s-character are involved in the bondin...

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  10. The number of Pentagons and Hexagons, respectively in Co-Fullerence ar...

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  11. The hybridisation of C in diamond, graphite and ethyne is in the order

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  12. Silica is insoluble

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

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  14. In hydrofluorosilicic acid the covalency of Si is

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

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

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  18. Hybridisation of carbon atom in carbon dioxide is

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

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