Chemistry-
General
Easy
Question
How many s electron are there in Cu+-
- 2
- 4
- 6
- 10
The correct answer is: 6
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The radiation force experienced by body exposed to radiation of intensity I, assuming surface of body to be perfectly absorbing is:
The radiation force experienced by body exposed to radiation of intensity I, assuming surface of body to be perfectly absorbing is:
physics-General
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STATEMENT - 1 : If the accelerating potential in an X-ray tube is increased, the wavelengths of the characteristic X-rays do not change
STATEMENT - 2 : When an electron beam strikes the target in an X-ray tube, part of the kinetic energy is converted into X-ray energy
STATEMENT - 1 : If the accelerating potential in an X-ray tube is increased, the wavelengths of the characteristic X-rays do not change
STATEMENT - 2 : When an electron beam strikes the target in an X-ray tube, part of the kinetic energy is converted into X-ray energy
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A compound of vanadium has a magnetic moment1.73B.M.Theelectronicconfiguration of vanadiumion in the compound is-
A compound of vanadium has a magnetic moment1.73B.M.Theelectronicconfiguration of vanadiumion in the compound is-
chemistry-General
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The following graph between 
probability density and distance from then ucleus represents-
The following graph between probability density and distance from then ucleus represents-
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If Hund’s rule is followed, magnetic moment of Fe2+,Mn+ and Cr all having 24 electrons will be in order-
If Hund’s rule is followed, magnetic moment of Fe2+,Mn+ and Cr all having 24 electrons will be in order-
chemistry-General
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Wave number of as pectralline for a given transition is xcm–1 for He+, then its value for Be3+forthesametransitionis-
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chemistry-General
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In the following transition which statement is correct
In the following transition which statement is correct
chemistry-General
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In a mixture of H – He+ gas (He+ is singly ionized He atom), H atoms and He+ ions are excited to their respective first excited states Subsequently, H atoms transfer their total excitation energy to He+ ions (by collisions) Assume that the Bohr model of atom is exactly valid.
The ratio of the kinetic energy of the n = 2 electron for the H atom to that of He+ ion is:
In a mixture of H – He+ gas (He+ is singly ionized He atom), H atoms and He+ ions are excited to their respective first excited states Subsequently, H atoms transfer their total excitation energy to He+ ions (by collisions) Assume that the Bohr model of atom is exactly valid.
The ratio of the kinetic energy of the n = 2 electron for the H atom to that of He+ ion is:
physics-General
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In a mixture of H – He+ gas (He+ is singly ionized He atom), H atoms and He+ ions are excited to their respective first excited states Subsequently, H atoms transfer their total excitation energy to He+ ions (by collisions) Assume that the Bohr model of atom is exactly valid.
The quantum number n of the state finally populated in He+ ions is :
In a mixture of H – He+ gas (He+ is singly ionized He atom), H atoms and He+ ions are excited to their respective first excited states Subsequently, H atoms transfer their total excitation energy to He+ ions (by collisions) Assume that the Bohr model of atom is exactly valid.
The quantum number n of the state finally populated in He+ ions is :
physics-General
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Given X-ray spectrum is for a Coolidge tube having accelerating potential V If accelerating potential is decreased to V/4, then 
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In a photoelectric experiment anode potential is plotted against plate current
In a photoelectric experiment anode potential is plotted against plate current
physics-General
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How many electrons in an atom with z=104 can have(n+
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How many electrons in an atom with z=104 can have(n+)=8-
chemistry-General
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Which orbital is represented by the complete wavefunction Ψ420 :
Which orbital is represented by the complete wavefunction Ψ420 :
chemistry-General
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Which orbital is represented by the complete wavefunction Ψ420 :
Which orbital is represented by the complete wavefunction Ψ420 :
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If the atom 100Fm257 follows Bohr model and the radius of last orbit of 100Fm257 is n times the Bohr radius, then find n
If the atom 100Fm257 follows Bohr model and the radius of last orbit of 100Fm257 is n times the Bohr radius, then find n
physics-General
