Orbital having 3 angular node and 3 total nodes is:
1. 5 p
2. 3 d
3. 4 f
4. 6 d
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following series of transitions in the spectrum of hydrogen atom falls in visible region?
1. Brackett series
2. Lyman series
3. Balmer series
4. Paschen series
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is:
1. 5f>6p>4d>5p
2. 5f>6p>5p>4d
3. 6p>5f>5p>4d
4. 6p>5f>4d>5p
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe orientation of an atomic orbital is governed by :
1. azimuthal quantum number
2. spin quantum number
3. magnetic quantum number
4. principal quantum number
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf the mass of electron is 9.11×10-31 kg and the planck's constant is 6.626 ×10-34 Js, then the uncertainty involved in the measurement of velocity within a distance of 0.1Å is :
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn element X has the following isotopic composition :
200X: 90%
199X: 8.0%
202X: 2.0%
The weighted average atomic mass of the naturally-occurring element X is closest to:
1. 200 amu
2. 201 amu
3. 202 amu
4. 199 amu
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyConsider the following sets of quantum numbers :
Which of the following sets of quantum number is not possible?
1. ii, iii and iv
2. i, ii, iii and iv
3. ii, iv and v
4. i and iii
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. 2 x 109 cm s-1
2. 1 x 109 cm s-1
3. 1 x 105 cms-1
4. 1 x 1011 cm s-1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf uncertainty in position and momentum are equal, then uncertainty in velocity is:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe incorrect set of quantum numbers among the following is
1. n= 4, l= 0, m= 0, s= -1/2
2. n= 5, l= 3, m= 0, s= +1/2
3. n= 3, l= 2, m= -3, s= -1/2
4. n= 3, l= 2, m= 2, s= -1/2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology