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The p-Block Elements
Difference between diamond and graphite.
| Diamond | Graphite |
| 1. It is the hardest substance known to exist. | 1. It is black greyish crystalline solid and is quite soft. |
| 2. It is a bad conductor of electricity. | 2. It is a good conductor of electricity. |
| 3. The carbon atoms in the structure are sp3 hybridised. | 3. The carbon atoms are sp2 hybridised. |
| 4. It has huge three dimensional network structure. | 4. It has two dimensional sheet like structure. |
| 5. It does not possess any lustre | 5. It a has metallic lustre. |
| 6. It a has very high melting point. | 6. It has low metling point. |
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Which element of group 13 forms amphoteric hydroxide?
Which element of group 13 forms the most stable +1 oxidation state?
What is the nature of boron trifluoride?
What is the structure of diborane?
Can borax bead test be performed for Ca2+ ion?
Which is the hardest compound of boron?
What is inorganic benzene? Write its formula.
Name a hydride of boron which is used as reducing agent in organic chemistry.
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