evaporation, Chemistry

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why does evaporation causes cooling

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Physical properties of nitro alkanes or nitroparaffins, Physical properties...

Physical properties of Nitro alkanes or Nitroparaffins (1) Nitro alkanes are colourless, pleasant smelling liquids. (2) These are sparingly soluble in water but enthusiastic

Calculate the force constant of cf4 and sif4, Calculate the force constant ...

Calculate the force constant of CF4 and SiF4 and compare their relative strengths with each other.   The heats of formation of CF 4 and SiF 4 are -1222 kJmol -1 and -1615

Energy required to dislodge electron h- atom, The energy required to dislod...

The energy required to dislodge electron from excited isolated H-atom, IE 1 = 13.6 eV   is: (1) = 13.6eV                        (2) > 13.6eV        (3) 3.4 eV

what is happen whenever h2so4+hno3 adding to the phenol?, What is happen ...

What is happen whenever H2SO4+HNO3 adding to the phenol.give the reaction Ans) Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.

Solid ch4 is, Solid CH 4   is: (1) Molecular solid (2) Ionic solid ...

Solid CH 4   is: (1) Molecular solid (2) Ionic solid (3) Pseudo solid (4) Does not exist Ans:  Molecular solid

The nitride ion in lithium nitride is composed of, The nitride ion in lithi...

The nitride ion in lithium nitride is composed of: (1) 7 protons + 10 electrons     (2) 10 protons + 10 electrons   (3) 7 protons + 7 protons (4) 10 protons + 7 electr

Alcohols, Preparation of dihydric alcohols

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The formation of energy bonds in solids are in accordance, The formation of...

The formation of energy bonds in solids are in accordance with: (1) Heisenberg's uncertainty principle   (2)Bohr's theory (3 )Ohm's law (4) Rutherford's atomic model

Conductivity, List three factor that affect conductivity

List three factor that affect conductivity

Show the liquation in purification of metals, Q. Show the Liquation in puri...

Q. Show the Liquation in purification of metals? Crude tin, bismuth and lead are purified by liquation. In this process, the impure metal is placed at the top of a sloping hear

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