313905
Which one of these is not true for benzene?
1 It forms one type of monosubstituted product
2 There are three carbon-carbon single bonds and three carbon-carbon double bonds
3 The heat of hydrogenation of benzene is less than the theoretical value
4 The bond angle between the carbon-carbon bond is
Explanation:
Resonance gives each C–C bond in benzene some double bond character and this has been confirmed by measuring bond length between two adjacent carbon atoms in various compounds of benzene. The bond length C–C ( bond as in ethane) is and C=C (double bond as in ethene) is . The carbon to carbon bond length in benzene has been found to be which lies between single and double bond length values.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313906
Resonance structures can be written for
1
2
3
4
Explanation:
Conceptual Questions
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313907
Which of the following conditions is not correct for resonating structures?
1 The contributing structures must have the same number of unpaired electrons.
2 The contributing structures should have almost similar energies.
3 The contributing structures should be so written that unlike charges reside on atoms that are far apart.
4 The positive charge should be present on the electropositive element and the negative charge on the electronegative element.
313905
Which one of these is not true for benzene?
1 It forms one type of monosubstituted product
2 There are three carbon-carbon single bonds and three carbon-carbon double bonds
3 The heat of hydrogenation of benzene is less than the theoretical value
4 The bond angle between the carbon-carbon bond is
Explanation:
Resonance gives each C–C bond in benzene some double bond character and this has been confirmed by measuring bond length between two adjacent carbon atoms in various compounds of benzene. The bond length C–C ( bond as in ethane) is and C=C (double bond as in ethene) is . The carbon to carbon bond length in benzene has been found to be which lies between single and double bond length values.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313906
Resonance structures can be written for
1
2
3
4
Explanation:
Conceptual Questions
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313907
Which of the following conditions is not correct for resonating structures?
1 The contributing structures must have the same number of unpaired electrons.
2 The contributing structures should have almost similar energies.
3 The contributing structures should be so written that unlike charges reside on atoms that are far apart.
4 The positive charge should be present on the electropositive element and the negative charge on the electronegative element.
313905
Which one of these is not true for benzene?
1 It forms one type of monosubstituted product
2 There are three carbon-carbon single bonds and three carbon-carbon double bonds
3 The heat of hydrogenation of benzene is less than the theoretical value
4 The bond angle between the carbon-carbon bond is
Explanation:
Resonance gives each C–C bond in benzene some double bond character and this has been confirmed by measuring bond length between two adjacent carbon atoms in various compounds of benzene. The bond length C–C ( bond as in ethane) is and C=C (double bond as in ethene) is . The carbon to carbon bond length in benzene has been found to be which lies between single and double bond length values.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313906
Resonance structures can be written for
1
2
3
4
Explanation:
Conceptual Questions
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313907
Which of the following conditions is not correct for resonating structures?
1 The contributing structures must have the same number of unpaired electrons.
2 The contributing structures should have almost similar energies.
3 The contributing structures should be so written that unlike charges reside on atoms that are far apart.
4 The positive charge should be present on the electropositive element and the negative charge on the electronegative element.
