melting point, Chemistry

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how can the melting point be used to determine the purity of organic compounds

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The velocity of hydrogen molecule, If the velocity of hydrogen molecule is ...

If the velocity of hydrogen molecule is 5x 10 4 cm sec -1   then its de-Broglie wavelength is: (1) 2 Å    (2) 4 Å    (3) 8 Å    (4)100 Å Ans:  4 Å

Interactive periodic table, Interactive periodic table In this interact...

Interactive periodic table In this interactive periodic table animation you can view details of all components through clicking on it. You can select the colored through option

Electrovalent bond formation depends on, Electrovalent bond formation depen...

Electrovalent bond formation depends on: (1) Ionization energy (2) Electron affinity (3) Lattice energy (4) All the three above Ans:  All the three above

Energy required to excite the electron in a hydrogen atom, The ionization e...

The ionization energy of hydrogen atom is -13.6eV.  The energy required to excite the electron in a hydrogen atom from the ground state to the first excited state is (Avogadro's co

Homologous, what do you mean by homologous series .

what do you mean by homologous series .

Equivalent weight, How to find the equivalent weight of a compound?

How to find the equivalent weight of a compound?

Orbital with maximum energy, The orbital with maximum energy is: (1) 3d...

The orbital with maximum energy is: (1) 3d            (2) 5p       (3) 4s             (4) 6d Ans: 6d

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