NEET Questions

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How many spectral lines are obtained when electron jumps from n=5 to n=1 hydrogen atom?

The frequency of radiation emitted when the electron falls from n=4 to n=1 in a hydrogen atom will be 

(Given ionization energy of H = 2.18 x 10-18J atom-1 and h=6.625 x 10-34Js

Which one is the wrong statement?

The element Z =114 has been discovered recently. It will belong to which of the following family/group and electronic configuration?

How many electrons can fit in the orbital for which n = 3 and l = 1?

Which of the following pairs of d-orbitals will have electron density along the axes?

Two electrons occupying the same orbital are distinguished by

Magnetic moment 2.84 BM is given by (At. no. Ni = 28, Ti = 22, Cr = 24, Co = 27)

The number of d-electrons in Fe2+ (Z=26) is not equal to the number of electrons in which one of the following?

The angular momentum of electrons in d orbital is equal to

Which is the correct order of increasing energy of the listed orbitals in the atom of titanium?

What is the maximum number of orbitals that can be identified with the following quantum numhers?


Calculate the energy in Joule corresponding to light of wavelength 45 nm : (Planck's constant h = 6.63 x 10-34 Js; speed of light c = 3 x 108 ms-1)

Magnetic moment of 2.83 BM is given by which of the following ions?

(At no: Ti=22; Cr=24; Mn=25; Ni=28)

The value of Planck's constant is 6.63 x 10-34 Js. The speed of light is 3 x 1017 nms-1. Which value is closest to the wavelength in nanometer of a quantum of light with the frequency of 6 x 1015 s-1?