Trying to find the right answer to this..

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

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 ?

223 Views

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.

Both N and Cl have the same electronegativity (3.0), but the atomic size of nitrogen is much smaller than that of chlorine. Thus, nitrogen atom polarises the covalent bond N-H much more than done by Cl atom in H-Cl bond. As a result, the only nitrogen atom is able to exhibit intermolecular hydrogen bonding.

113 Views