Chemistry-
General
Easy
Question
According to de Broglie concept, the circumference of each electron must be equal to.......
- Diameter of electron
- The wavelength of electron
- The integral multiple of wavelength
- Planck’s constant divided by 2
The correct answer is: The integral multiple of wavelength
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The maximum number of electrons in an atom which can have (n+l) = 4 is:
The maximum number of electrons in an atom which can have (n+l) = 4 is:
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If Pauli’s exclusion principle is not known the electronic arrangement of lithium atom would be:
If Pauli’s exclusion principle is not known the electronic arrangement of lithium atom would be:
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The following illustrates impossibility of measurement of position and velocity of an electron simultaneously.
The following illustrates impossibility of measurement of position and velocity of an electron simultaneously.
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. Energy of an electron in an atom...
. Energy of an electron in an atom...
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Energy of an electron in Bohr’s nth orbit is.......
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The wavelength of limiting line of Pfund series is:
The wavelength of limiting line of Pfund series is:
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If 
are threshold wavelength and wavelength of incident light, the velocity of photo electrons ejected will be......
If are threshold wavelength and wavelength of incident light, the velocity of photo electrons ejected will be......
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The frequency of spectral line obtained when electron in n=3 of hydrogen atom drops to ground state is?
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The number of spectral lines formed during transition from n=5 to ground state is calculated by the equation:
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The ratio of wavelength values of series limit lines (n2 = 
) of Balmer series and Paschen series are......
The ratio of wavelength values of series limit lines (n2 = ) of Balmer series and Paschen series are......
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Among the following which is correct about photoelectric effect?
Among the following which is correct about photoelectric effect?
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Line spectrum is a characteristic of.....
Line spectrum is a characteristic of.....
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The unit of Planck’s constant is.....
The unit of Planck’s constant is.....
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The relative charges of proton & electron respectively are:
The relative charges of proton & electron respectively are:
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Which of the following is isoelectronic with CO?
Which of the following is isoelectronic with CO?
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