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Chemical Bonding and Molecular Structure

Short Answer Type

241.

Give the reason for the following: Bond order in N₂ is 3 whereas it is 2.5 in NO ?

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Long Answer Type

242.

Give the points of resemblance and points of difference between valence bond theory and molecular orbtial theory.

120 Views

243.

What is hydrogen bond? How is it formed?

137 Views

Short Answer Type

244.

What are the conditions for hydrogen bonding ?

126 Views

245.

Water is a liquid while hydrogen sulphide is a gas. Explain.

119 Views

246.

Out of NH₃ and PH₃, which has higher boiling point and why?

127 Views

247.

Nitrogen and chlorine have the same electronegativity but only former shows intermolecular hydrogen bonding. Discuss.

113 Views

Long Answer Type

248.

What are the types of hydrogen bonding? Give examples.

143 Views

Short Answer Type

249.
What are the conditions for the formation of intramolecular hydrogen bonding?

Intramolecular hydrogen bond: It is formed when a hydrogen atom is in between the two highly electronegative (F,O,N) atoms present within the same molecules. For example, in o- nitrophenol the hydrogen is in between the two oxygen atoms.

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250. O-Nitrophenol is steam volatile, while p-nitrophenol is not. Explain.
Or
Boiling point of o-nitrophenol is less than p-nitrophenol. Explain.

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249. What are the conditions for the formation of intramolecular hydrogen bonding?

249.
What are the conditions for the formation of intramolecular hydrogen bonding?