Chemistry-
General
Easy
Question
A transition metal ‘X’ has configuration [Ar] 3d4 in its+3 oxidation state.Its atomic number is....
- 25
- 26
- 22
- 19
The correct answer is: 25
Related Questions to study
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A cricket ball of 0.5 kg is moving with a velocity of 100m/s. The wavelength associated with its motion is:
A cricket ball of 0.5 kg is moving with a velocity of 100m/s. The wavelength associated with its motion is:
Chemistry-General
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The velocities of two particles A and B are 0.05 and 0.02 m/s respectively. The mass of B is five times the mass of A. The ratio of their de Broglie wave lengths is.....
The velocities of two particles A and B are 0.05 and 0.02 m/s respectively. The mass of B is five times the mass of A. The ratio of their de Broglie wave lengths is.....
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According to de Broglie concept, the circumference of each electron must be equal to.......
According to de Broglie concept, the circumference of each electron must be equal to.......
Chemistry-General
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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:
Chemistry-General
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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:
Chemistry-General
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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.
Chemistry-General
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. Energy of an electron in an atom...
. Energy of an electron in an atom...
Chemistry-General
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Energy of an electron in Bohr’s nth orbit is.......
Energy of an electron in Bohr’s nth orbit is.......
Chemistry-General
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The wavelength of limiting line of Pfund series is:
The wavelength of limiting line of Pfund series is:
Chemistry-General
Chemistry-
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......
Chemistry-General
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The frequency of spectral line obtained when electron in n=3 of hydrogen atom drops to ground state is?
The frequency of spectral line obtained when electron in n=3 of hydrogen atom drops to ground state is?
Chemistry-General
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The number of spectral lines formed during transition from n=5 to ground state is calculated by the equation:
The number of spectral lines formed during transition from n=5 to ground state is calculated by the equation:
Chemistry-General
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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......
Chemistry-General
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Among the following which is correct about photoelectric effect?
Among the following which is correct about photoelectric effect?
Chemistry-General
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Line spectrum is a characteristic of.....
Line spectrum is a characteristic of.....
Chemistry-General
