Advertisements
Advertisements
प्रश्न
How will you account for 104.5° bond angle in water?
Advertisements
उत्तर
In water hybridisation of oxygen is sp3. Angle should be 109° (approx.) but due to LP – LP repulsion bond angle reduces to 104.5°.
APPEARS IN
संबंधित प्रश्न
Among NH3, H2O and HF, which would you expect to have highest magnitude of hydrogen bonding and why?
Arrange the following:
CaH2, BeH2 and TiH2 in order of increasing electrical conductance.
Why is it said that-
Water is a universal solvent.
Sea water is a bad conductor of electricity.
Define the following.
Freezing point
Define the following.
Boiling point
Which of the following equations depict the oxidising nature of \[\ce{H2O2}\]?
Which of the following equation depicts reducing nature of \[\ce{H2O2}\]?
Some of the properties of water are described below. Which of them is/are not correct?
(i) Water is known to be a universal solvent.
(ii) Hydrogen bonding is present to a large extent in liquid water.
(iii) There is no hydrogen bonding in the frozen state of water.
(iv) Frozen water is heavier than liquid water.
Give reasons: Lakes freeze from top towards bottom.
Give reasons: Ice floats on water.
\[\ce{H2O2}\] is a better oxidising agent than water. Explain.
Melting point, enthalpy of vapourisation and viscosity data of \[\ce{H2O}\] and \[\ce{D2O}\] is given below :
| \[\ce{H, O}\] | \[\ce{D2O}\] | |
| Melting point / K | 373.0 | 374.4 |
| Enthalpy of vapourisation at (373 K)/kJ mol–1 | 40.66 | 41.61 |
| Viscosity/centipoise | 0.8903 | 1.107 |
On the basis of this data explain in which of these liquids intermolecular forces are stronger?
Why does water show high boiling point as compared to hydrogen sulphide? Give reasons for your answer.
Freezing of water will cause an ______ is the volume.
______ has the highest latent heat of fusion.
One gram of water requires ______ of heat to raise its temperature by l°C.
Water is circulated around the car engine using the ______ pump and the heat is absorbed.
What is the taste of distilled water & boiled water?
What are the physical properties of pure water?
