Bond Parameters
« First Topic in Next Topic: Cause of Chemical Combination »
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313460 Assertion :
Among the two O–H bonds in \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) molecule, the energy required to break the first O – H bond and the other O – H bond are different.
Reason :
This is because the electronic environment around oxygen is the same even after breakage of one O–H bond.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313461 Match the bond enthalpies given in column II with the molecules given in column I and mark the appropriate choice.
Column I
Column II
A
Hydrogen \(\left( {{{\rm{H}}_{\rm{2}}}} \right)\)
P
\({\rm{498}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
B
Oxygen \(\left( {{{\rm{O}}_{\rm{2}}}} \right)\)
Q
\({\rm{964}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
C
Nitrogen \(\left( {{{\rm{N}}_{\rm{2}}}} \right)\)
R
\({\rm{435}}{\rm{.8}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)

1 A - P, B - Q, C - R
2 A - R, B - Q, C - P
3 A - P, B - R, C - Q
4 A - R, B - P, C - Q
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313462 Which of the following option with respect to increasing bond dissociation energies is correct?

1 \({\rm{NO}} < {{\rm{C}}_{\rm{2}}} < {\rm{O}}_2^ - < {\rm{He}}_{\rm{2}}^{\rm{ + }}\)
2 \({{\rm{C}}_2} < {\rm{NO}} < {\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - \)
3 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {\rm{NO}} < {{\rm{C}}_{\rm{2}}}\)
4 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {{\rm{C}}_{\rm{2}}} < {\rm{NO}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313463 Assertion :
Bond energy of \({{\text{F}}_{\text{2}}}\) is lesser than \(\mathrm{Cl}_{2}\).
Reason :
' \(\mathrm{F}\) ' - atom is smaller in size than ' \(\mathrm{Cl}\) ',

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.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313464 Assertion :
Bond energy has order like
\(\mathrm{C}-\mathrm{C} < \mathrm{C}=\mathrm{C} < \mathrm{C} \equiv \mathrm{C}\)
Reason :
Bond energy increases with increase in bond order.

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.
Join With Us for More Updates
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313460 Assertion :
Among the two O–H bonds in \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) molecule, the energy required to break the first O – H bond and the other O – H bond are different.
Reason :
This is because the electronic environment around oxygen is the same even after breakage of one O–H bond.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313461 Match the bond enthalpies given in column II with the molecules given in column I and mark the appropriate choice.
Column I
Column II
A
Hydrogen \(\left( {{{\rm{H}}_{\rm{2}}}} \right)\)
P
\({\rm{498}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
B
Oxygen \(\left( {{{\rm{O}}_{\rm{2}}}} \right)\)
Q
\({\rm{964}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
C
Nitrogen \(\left( {{{\rm{N}}_{\rm{2}}}} \right)\)
R
\({\rm{435}}{\rm{.8}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)

1 A - P, B - Q, C - R
2 A - R, B - Q, C - P
3 A - P, B - R, C - Q
4 A - R, B - P, C - Q
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313462 Which of the following option with respect to increasing bond dissociation energies is correct?

1 \({\rm{NO}} < {{\rm{C}}_{\rm{2}}} < {\rm{O}}_2^ - < {\rm{He}}_{\rm{2}}^{\rm{ + }}\)
2 \({{\rm{C}}_2} < {\rm{NO}} < {\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - \)
3 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {\rm{NO}} < {{\rm{C}}_{\rm{2}}}\)
4 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {{\rm{C}}_{\rm{2}}} < {\rm{NO}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313463 Assertion :
Bond energy of \({{\text{F}}_{\text{2}}}\) is lesser than \(\mathrm{Cl}_{2}\).
Reason :
' \(\mathrm{F}\) ' - atom is smaller in size than ' \(\mathrm{Cl}\) ',

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.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313464 Assertion :
Bond energy has order like
\(\mathrm{C}-\mathrm{C} < \mathrm{C}=\mathrm{C} < \mathrm{C} \equiv \mathrm{C}\)
Reason :
Bond energy increases with increase in bond order.

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.
For More Updates join with Us
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313460 Assertion :
Among the two O–H bonds in \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) molecule, the energy required to break the first O – H bond and the other O – H bond are different.
Reason :
This is because the electronic environment around oxygen is the same even after breakage of one O–H bond.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313461 Match the bond enthalpies given in column II with the molecules given in column I and mark the appropriate choice.
Column I
Column II
A
Hydrogen \(\left( {{{\rm{H}}_{\rm{2}}}} \right)\)
P
\({\rm{498}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
B
Oxygen \(\left( {{{\rm{O}}_{\rm{2}}}} \right)\)
Q
\({\rm{964}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
C
Nitrogen \(\left( {{{\rm{N}}_{\rm{2}}}} \right)\)
R
\({\rm{435}}{\rm{.8}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)

1 A - P, B - Q, C - R
2 A - R, B - Q, C - P
3 A - P, B - R, C - Q
4 A - R, B - P, C - Q
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313462 Which of the following option with respect to increasing bond dissociation energies is correct?

1 \({\rm{NO}} < {{\rm{C}}_{\rm{2}}} < {\rm{O}}_2^ - < {\rm{He}}_{\rm{2}}^{\rm{ + }}\)
2 \({{\rm{C}}_2} < {\rm{NO}} < {\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - \)
3 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {\rm{NO}} < {{\rm{C}}_{\rm{2}}}\)
4 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {{\rm{C}}_{\rm{2}}} < {\rm{NO}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313463 Assertion :
Bond energy of \({{\text{F}}_{\text{2}}}\) is lesser than \(\mathrm{Cl}_{2}\).
Reason :
' \(\mathrm{F}\) ' - atom is smaller in size than ' \(\mathrm{Cl}\) ',

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.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313464 Assertion :
Bond energy has order like
\(\mathrm{C}-\mathrm{C} < \mathrm{C}=\mathrm{C} < \mathrm{C} \equiv \mathrm{C}\)
Reason :
Bond energy increases with increase in bond order.

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.
NEET DIGITAL LIBRARY
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313460 Assertion :
Among the two O–H bonds in \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) molecule, the energy required to break the first O – H bond and the other O – H bond are different.
Reason :
This is because the electronic environment around oxygen is the same even after breakage of one O–H bond.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313461 Match the bond enthalpies given in column II with the molecules given in column I and mark the appropriate choice.
Column I
Column II
A
Hydrogen \(\left( {{{\rm{H}}_{\rm{2}}}} \right)\)
P
\({\rm{498}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
B
Oxygen \(\left( {{{\rm{O}}_{\rm{2}}}} \right)\)
Q
\({\rm{964}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
C
Nitrogen \(\left( {{{\rm{N}}_{\rm{2}}}} \right)\)
R
\({\rm{435}}{\rm{.8}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)

1 A - P, B - Q, C - R
2 A - R, B - Q, C - P
3 A - P, B - R, C - Q
4 A - R, B - P, C - Q
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313462 Which of the following option with respect to increasing bond dissociation energies is correct?

1 \({\rm{NO}} < {{\rm{C}}_{\rm{2}}} < {\rm{O}}_2^ - < {\rm{He}}_{\rm{2}}^{\rm{ + }}\)
2 \({{\rm{C}}_2} < {\rm{NO}} < {\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - \)
3 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {\rm{NO}} < {{\rm{C}}_{\rm{2}}}\)
4 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {{\rm{C}}_{\rm{2}}} < {\rm{NO}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313463 Assertion :
Bond energy of \({{\text{F}}_{\text{2}}}\) is lesser than \(\mathrm{Cl}_{2}\).
Reason :
' \(\mathrm{F}\) ' - atom is smaller in size than ' \(\mathrm{Cl}\) ',

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.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313464 Assertion :
Bond energy has order like
\(\mathrm{C}-\mathrm{C} < \mathrm{C}=\mathrm{C} < \mathrm{C} \equiv \mathrm{C}\)
Reason :
Bond energy increases with increase in bond order.

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.
Join With Us for More Updates
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313460 Assertion :
Among the two O–H bonds in \({{\rm{H}}_{\rm{2}}}{\rm{O}}\) molecule, the energy required to break the first O – H bond and the other O – H bond are different.
Reason :
This is because the electronic environment around oxygen is the same even after breakage of one O–H bond.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313461 Match the bond enthalpies given in column II with the molecules given in column I and mark the appropriate choice.
Column I
Column II
A
Hydrogen \(\left( {{{\rm{H}}_{\rm{2}}}} \right)\)
P
\({\rm{498}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
B
Oxygen \(\left( {{{\rm{O}}_{\rm{2}}}} \right)\)
Q
\({\rm{964}}{\rm{.0}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)
C
Nitrogen \(\left( {{{\rm{N}}_{\rm{2}}}} \right)\)
R
\({\rm{435}}{\rm{.8}}\,{\rm{kJ}}\,\,{\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\)

1 A - P, B - Q, C - R
2 A - R, B - Q, C - P
3 A - P, B - R, C - Q
4 A - R, B - P, C - Q
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313462 Which of the following option with respect to increasing bond dissociation energies is correct?

1 \({\rm{NO}} < {{\rm{C}}_{\rm{2}}} < {\rm{O}}_2^ - < {\rm{He}}_{\rm{2}}^{\rm{ + }}\)
2 \({{\rm{C}}_2} < {\rm{NO}} < {\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - \)
3 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {\rm{NO}} < {{\rm{C}}_{\rm{2}}}\)
4 \({\rm{He}}_{\rm{2}}^{\rm{ + }} < {\rm{O}}_2^ - < {{\rm{C}}_{\rm{2}}} < {\rm{NO}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313463 Assertion :
Bond energy of \({{\text{F}}_{\text{2}}}\) is lesser than \(\mathrm{Cl}_{2}\).
Reason :
' \(\mathrm{F}\) ' - atom is smaller in size than ' \(\mathrm{Cl}\) ',

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.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313464 Assertion :
Bond energy has order like
\(\mathrm{C}-\mathrm{C} < \mathrm{C}=\mathrm{C} < \mathrm{C} \equiv \mathrm{C}\)
Reason :
Bond energy increases with increase in bond order.

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.