Carbon and its Compounds
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CHXI11:THE P-BLOCK ELEMENTS

316129 Which of the following statements is correct?

1 Fullerenes have dangling bonds.
2 Fullerenes are ball-like molecules.
3 Graphite is thermodynamically most stable allotrope of carbon.
4 Graphite is slippery and hard and therefore used as a dry lubricant in Machines.
CHXI11:THE P-BLOCK ELEMENTS

316130 Bucky ball or buck minister fullerene is

1 An allotrope of carbon
2 It is referred as C-60
3 It has \({\text{s}}{{\text{p}}^{\text{2}}}\) -hybridised nature and resembles with soccer ball
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316131 Assertion :
Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity.
Reason :
Hybridization of carbon in diamond and graphite are \({\text{s}}{{\text{p}}^{\text{3}}}\,\) and \({\text{s}}{{\text{p}}^{\text{2}}}\), respectively.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
JEE - 2016
CHXI11:THE P-BLOCK ELEMENTS

316132 Different layers in graphite are held together by:

1 Ionic bonding
2 Metallic bonding
3 Covalent bonding
4 Vanderwaals forces
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CHXI11:THE P-BLOCK ELEMENTS

316129 Which of the following statements is correct?

1 Fullerenes have dangling bonds.
2 Fullerenes are ball-like molecules.
3 Graphite is thermodynamically most stable allotrope of carbon.
4 Graphite is slippery and hard and therefore used as a dry lubricant in Machines.
CHXI11:THE P-BLOCK ELEMENTS

316130 Bucky ball or buck minister fullerene is

1 An allotrope of carbon
2 It is referred as C-60
3 It has \({\text{s}}{{\text{p}}^{\text{2}}}\) -hybridised nature and resembles with soccer ball
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316131 Assertion :
Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity.
Reason :
Hybridization of carbon in diamond and graphite are \({\text{s}}{{\text{p}}^{\text{3}}}\,\) and \({\text{s}}{{\text{p}}^{\text{2}}}\), respectively.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
JEE - 2016
CHXI11:THE P-BLOCK ELEMENTS

316132 Different layers in graphite are held together by:

1 Ionic bonding
2 Metallic bonding
3 Covalent bonding
4 Vanderwaals forces
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CHXI11:THE P-BLOCK ELEMENTS

316129 Which of the following statements is correct?

1 Fullerenes have dangling bonds.
2 Fullerenes are ball-like molecules.
3 Graphite is thermodynamically most stable allotrope of carbon.
4 Graphite is slippery and hard and therefore used as a dry lubricant in Machines.
CHXI11:THE P-BLOCK ELEMENTS

316130 Bucky ball or buck minister fullerene is

1 An allotrope of carbon
2 It is referred as C-60
3 It has \({\text{s}}{{\text{p}}^{\text{2}}}\) -hybridised nature and resembles with soccer ball
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316131 Assertion :
Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity.
Reason :
Hybridization of carbon in diamond and graphite are \({\text{s}}{{\text{p}}^{\text{3}}}\,\) and \({\text{s}}{{\text{p}}^{\text{2}}}\), respectively.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
JEE - 2016
CHXI11:THE P-BLOCK ELEMENTS

316132 Different layers in graphite are held together by:

1 Ionic bonding
2 Metallic bonding
3 Covalent bonding
4 Vanderwaals forces
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CHXI11:THE P-BLOCK ELEMENTS

316129 Which of the following statements is correct?

1 Fullerenes have dangling bonds.
2 Fullerenes are ball-like molecules.
3 Graphite is thermodynamically most stable allotrope of carbon.
4 Graphite is slippery and hard and therefore used as a dry lubricant in Machines.
CHXI11:THE P-BLOCK ELEMENTS

316130 Bucky ball or buck minister fullerene is

1 An allotrope of carbon
2 It is referred as C-60
3 It has \({\text{s}}{{\text{p}}^{\text{2}}}\) -hybridised nature and resembles with soccer ball
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316131 Assertion :
Among the carbon allotropes, diamond is an insulator, whereas, graphite is a good conductor of electricity.
Reason :
Hybridization of carbon in diamond and graphite are \({\text{s}}{{\text{p}}^{\text{3}}}\,\) and \({\text{s}}{{\text{p}}^{\text{2}}}\), respectively.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
JEE - 2016
CHXI11:THE P-BLOCK ELEMENTS

316132 Different layers in graphite are held together by:

1 Ionic bonding
2 Metallic bonding
3 Covalent bonding
4 Vanderwaals forces
For More Updates join with Us