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11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.58. Name the two conditions which must be satisfied for hydrogen bonding to take place in a molecule.
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Payal Gupta

Contributor-Level 10

4.58.  (i) The molecule should contain highly electronegative atom like hydrogen atom.

(ii) The size of electronegative atom should be small.

New answer posted

11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.57. Out of bonding and antibonding molecular orbitals, which one has lower energy and which one has higher stability?
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Payal Gupta

Contributor-Level 10

4.57. Bonding molecular orbital has lower energy and higher stability.

New answer posted

11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.56. Why N2 is more stable than O2? Explain on the basis of molecular orbital theory.
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Payal Gupta

Contributor-Level 10

4.56. Bond order of N2 (= 3) is greater than that of O2 (= 2).

New answer posted

11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.55. Which is more polar CO2 or N2O? Give reason.
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Payal Gupta

Contributor-Level 10

4.55. N2O is more polar than CO2.

This is because CO2 is linear and symmetrical. Its net dipole moment is zero.

N2O is linear but not symmetrical.

New answer posted

11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.54. Why ethyl alcohol is completely miscible with water?
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Payal Gupta

Contributor-Level 10

4.54. This is because ethyl alcohol forms H-bonds with water.

New answer posted

11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.53. What is meant by bond pairs of electrons?
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Payal Gupta

Contributor-Level 10

4.53. The electron pairs involved in the bond formation are known as bond pairs or shared pairs.

New answer posted

11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.52. Predict the shapes of the following molecules using VSEPR theory?

(i) BeCl2

(ii) SiCl4
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Payal Gupta

Contributor-Level 10

4.52.  (i) Linear

(ii) Tetrahedral

New answer posted

11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.51. Write the type of hybridisation involved in CH4, C2H4 and C2H2.
0 Follower 7 Views

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Payal Gupta

Contributor-Level 10

4.51. CH4= sp3

C2H4 = sp2

C2H2 = sp

New answer posted

11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.50. Relation between bond order and stability of a molecule:

(a) Lower the bond order, greater is the stability

(b) Not related to each other

(c) Higher the bond order, greater is the stability

(d) None of the above
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Payal Gupta

Contributor-Level 10

4.50.  (c) Higher the bond order, greater is the stability.

New answer posted

11 months ago

Chemistry Chemical Bonding and Molecular Structure

4.49. Out of the following, intramolecular hydrogen bonding exists in:

(a) Water

(b) H2S

(c) 4-nitrophenol

(d) 2-nitrophenol
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Payal Gupta

Contributor-Level 10

4.49.  (d) 2-nitrophenol

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