Polarity of a Covalent Bond
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313886 Which among the following molecules is non polar?

1 \(\mathrm{NH}_{3}\)
2 \(\mathrm{ICl}\)
3 \(\mathrm{HCl}\)
4 \(\mathrm{C}_{6} \mathrm{H}_{6}\)
MHTCET - 2022
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313874 Read the Assertion and Reason carefully to mark the correct options given below:
Assertion :
\({\mathrm{\mathrm{NH}_{3}}}\) and \({\mathrm{\mathrm{NF}_{3}}}\) molecules have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of \({\mathrm{\mathrm{NH}_{3}}}\) is greater than that of \({\mathrm{\mathrm{NF}_{3}}}\).
Reason :
In \({\mathrm{\mathrm{NH}_{3}}}\) ,the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the N-H bonds.F is the most electronegative element.

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 Main - 2024
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313875 \(\mathrm{CH}_{3} \mathrm{Cl}\) has more dipole moment than \(\mathrm{CH}_{3} \mathrm{~F}\) because

1 Electron affinity of chlorine is greater than that of fluorine.
2 The charge separation is larger in \(\mathrm{CH}_{3} \mathrm{Cl}\) as compared to \(\mathrm{CH}_{3} \mathrm{~F}\)
3 The repulsion between the bond pairs and non-bonded pairs of electrons is greater in it than \(\mathrm{CH}_{3} \mathrm{~F}\).
4 Chlorine has higher electronegativity than fluorine.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313876 Bond length in HCl is 1.275 \( \mathop {\rm{A}}^{\circ} \) and experimental value of dipole moment is 1.03 D . Percentage ionic character of HCl will be?

1 12
2 10
3 21.5
4 16.83
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313886 Which among the following molecules is non polar?

1 \(\mathrm{NH}_{3}\)
2 \(\mathrm{ICl}\)
3 \(\mathrm{HCl}\)
4 \(\mathrm{C}_{6} \mathrm{H}_{6}\)
MHTCET - 2022
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313874 Read the Assertion and Reason carefully to mark the correct options given below:
Assertion :
\({\mathrm{\mathrm{NH}_{3}}}\) and \({\mathrm{\mathrm{NF}_{3}}}\) molecules have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of \({\mathrm{\mathrm{NH}_{3}}}\) is greater than that of \({\mathrm{\mathrm{NF}_{3}}}\).
Reason :
In \({\mathrm{\mathrm{NH}_{3}}}\) ,the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the N-H bonds.F is the most electronegative element.

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 Main - 2024
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313875 \(\mathrm{CH}_{3} \mathrm{Cl}\) has more dipole moment than \(\mathrm{CH}_{3} \mathrm{~F}\) because

1 Electron affinity of chlorine is greater than that of fluorine.
2 The charge separation is larger in \(\mathrm{CH}_{3} \mathrm{Cl}\) as compared to \(\mathrm{CH}_{3} \mathrm{~F}\)
3 The repulsion between the bond pairs and non-bonded pairs of electrons is greater in it than \(\mathrm{CH}_{3} \mathrm{~F}\).
4 Chlorine has higher electronegativity than fluorine.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313876 Bond length in HCl is 1.275 \( \mathop {\rm{A}}^{\circ} \) and experimental value of dipole moment is 1.03 D . Percentage ionic character of HCl will be?

1 12
2 10
3 21.5
4 16.83
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313886 Which among the following molecules is non polar?

1 \(\mathrm{NH}_{3}\)
2 \(\mathrm{ICl}\)
3 \(\mathrm{HCl}\)
4 \(\mathrm{C}_{6} \mathrm{H}_{6}\)
MHTCET - 2022
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313874 Read the Assertion and Reason carefully to mark the correct options given below:
Assertion :
\({\mathrm{\mathrm{NH}_{3}}}\) and \({\mathrm{\mathrm{NF}_{3}}}\) molecules have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of \({\mathrm{\mathrm{NH}_{3}}}\) is greater than that of \({\mathrm{\mathrm{NF}_{3}}}\).
Reason :
In \({\mathrm{\mathrm{NH}_{3}}}\) ,the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the N-H bonds.F is the most electronegative element.

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 Main - 2024
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313875 \(\mathrm{CH}_{3} \mathrm{Cl}\) has more dipole moment than \(\mathrm{CH}_{3} \mathrm{~F}\) because

1 Electron affinity of chlorine is greater than that of fluorine.
2 The charge separation is larger in \(\mathrm{CH}_{3} \mathrm{Cl}\) as compared to \(\mathrm{CH}_{3} \mathrm{~F}\)
3 The repulsion between the bond pairs and non-bonded pairs of electrons is greater in it than \(\mathrm{CH}_{3} \mathrm{~F}\).
4 Chlorine has higher electronegativity than fluorine.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313876 Bond length in HCl is 1.275 \( \mathop {\rm{A}}^{\circ} \) and experimental value of dipole moment is 1.03 D . Percentage ionic character of HCl will be?

1 12
2 10
3 21.5
4 16.83
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313886 Which among the following molecules is non polar?

1 \(\mathrm{NH}_{3}\)
2 \(\mathrm{ICl}\)
3 \(\mathrm{HCl}\)
4 \(\mathrm{C}_{6} \mathrm{H}_{6}\)
MHTCET - 2022
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313874 Read the Assertion and Reason carefully to mark the correct options given below:
Assertion :
\({\mathrm{\mathrm{NH}_{3}}}\) and \({\mathrm{\mathrm{NF}_{3}}}\) molecules have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of \({\mathrm{\mathrm{NH}_{3}}}\) is greater than that of \({\mathrm{\mathrm{NF}_{3}}}\).
Reason :
In \({\mathrm{\mathrm{NH}_{3}}}\) ,the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the N-H bonds.F is the most electronegative element.

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 Main - 2024
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313875 \(\mathrm{CH}_{3} \mathrm{Cl}\) has more dipole moment than \(\mathrm{CH}_{3} \mathrm{~F}\) because

1 Electron affinity of chlorine is greater than that of fluorine.
2 The charge separation is larger in \(\mathrm{CH}_{3} \mathrm{Cl}\) as compared to \(\mathrm{CH}_{3} \mathrm{~F}\)
3 The repulsion between the bond pairs and non-bonded pairs of electrons is greater in it than \(\mathrm{CH}_{3} \mathrm{~F}\).
4 Chlorine has higher electronegativity than fluorine.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313876 Bond length in HCl is 1.275 \( \mathop {\rm{A}}^{\circ} \) and experimental value of dipole moment is 1.03 D . Percentage ionic character of HCl will be?

1 12
2 10
3 21.5
4 16.83
For More Updates join with Us