मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

Give reasons: Ice floats on water.

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प्रश्न

Give reasons: Ice floats on water.

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उत्तर

Density of ice is less than that of water that is why it floats on the surface of water.

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Physical Properties of Water
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 9: Hydrogen - Multiple Choice Questions (Type - I) [पृष्ठ ११८]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 11
पाठ 9 Hydrogen
Multiple Choice Questions (Type - I) | Q 33.(ii) | पृष्ठ ११८

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.


What properties of water make it useful as a solvent? What types of compound can it (i) dissolve, and (ii) hydrolyse?


Why is it said that-

Water is a universal solvent.


Why is it said that-

There is no alternative to water for cleaning purposes.


State whether the following statement is true or false.

The substance in which a solute dissolves is called a solvent.


Explain the picture in your own words.


Explain the various properties of water.


If same mass of liquid water and a piece of ice is taken, then why is the density of ice less than that of liquid water?


Give reasons: Lakes freeze from top towards bottom.


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?


The boiling point of water increases with ______ in pressure.


Pure water boils at ______ °C at one atmospheric pressure.


One gram of water requires ______ of heat to raise its temperature by l°C.


What are the physical properties of pure water?


Which of the following ion is responsible for the temporary hardness of water?  


The density of gold is 19 g/cm3. If 1.9 × 10−4 g of gold is dispersed in one litre of water to give a sol having spherical gold particles of radius 10 nm, the number of gold particles per mm3 of the sol will be ______ × 106.


The water having more dissolved O2 is ______.


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