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Which of the following statement is cor...

Which of the following statement is correct?

A

Diamond is the metastable allotrope of carbon

B

Diamond being thermodynamically less stable than graphite can convert into graphite spontaneously under ordinary conditions

C

Formation of diamond (from graphite) is favoured by high pressure and temperature in accordance with Le-chatelier's principle

D

Diamond has theroretically more efficient packing than graphite

Text Solution

Verified by Experts

The correct Answer is:
A, C
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GRB PUBLICATION-P BLOCK ELEMENTS-Multiple Objective Type
  1. The compound which produce CO gas finally on heating are :

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  2. The compounds which do not undergo hydrolysis at room temperature are:

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  3. Which of the following statement is correct?

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  4. Choose the correct statements (s):

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  5. Which of the following statement are correct ?

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  6. The Lewis acid strength of following molecule is in the order:

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  7. Choose the correct statements (s) for group-18 elements:

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  8. Select the incorrect statement (s) about noble gases:

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  9. XeF(6) (s) can be prepared by:

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  10. Identify the reaction(s) in which the stereochemistry of underlined sp...

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  11. Which among the following is a use of helium?

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  12. Select the correct statement (s) regarding compounds of noble gases:

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  13. Which of the following methods can be used to produce phosphine gas ?

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  14. Which of the following is a redox reaction ?

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  15. Compound (A) contains Cl in its structure and Cl has uninegative and u...

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  16. Which of the following produce(s) N(2) gas ?

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  17. Which of the following reaction(s) give white precipitate?

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  18. Which of the following crystal will have at least two axial angle 90^(...

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  19. When a compound X reacts with ozone in aqueous medium, a compound Y is...

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  20. Which of the following statement is /are correct regarding B(2)H(6)?

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