Which of the following statements is wrong?
1. The uncertainty principle is
2. Half-filled and fully filled orbitals have greater stability due to greater exchange energy,
greater symmetry, and a more balanced arrangement.
3. The energy of the 2s orbital is less than the energy of the 2p orbital in the case of hydrogen-like atoms.
4. De-Broglie's wavelength is given by , where m= mass of the particle, v = group velocity of the particle.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA pair of d-orbitals having electron density along the axes is
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe incorrect statement among the following is
1. Total orbital angular momentum of an electron in 's' orbital is equal to zero.
2. An orbital is designated by three quantum numbers, while an electron in an atom is designated by four quantum numbers.
3. The electronic configuration of N atom is
4. The value of m for dz2 is zero.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHow many electrons can fit in the subshell for which n = 3 and l = 1?
1. 2
2. 6
3. 10
4. 14
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe element Z = 114 has been discovered recently.
It will belong to which of the following family/group and electronic configuration.
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe electronic configurations of Eu (Atomic no. 63), Gd (Atomic no. 64) and Tb (Tb Atomic no. 65) are
1. [Xe]4f65d16s2, [Xe]4f75d16s2 and [Xe]4f96s2
2. [Xe]4f65d16s2, [Xe]4f75d16s2 and [Xe]4f85d16s2
3. [Xe]4f76s2, [Xe]4f75d16s2 and [Xe]4f96s2
4. [Xe]4f76s2, [Xe]4f86s2 and [Xe]4f85d16s2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo electrons occupying the same orbital are distinguished by
(1) Magnetic quantum number
(2) Azimuthal quantum number
(3) Spin quantum number
(4) Principal quantum number
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following pairs of d-orbitals will have electron density along the axes?
(1) dz2,dxz
(2) dxz,dyz
(3) dz2,dx2-y2
(4) dxy,dx2-y2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of electrons that can be fit into the orbital for which n = 3 and l = 1, is
1. 2
2. 6
3. 10
4. 14
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology