Iodine molecule dissociates into atoms after absorbing light of 4500 A. If one quantum of radiation is absorbed by each molecule, calculate the kinetic energy of iodine atoms. Bond energy of I2 is 240 kJ mol-1.

1. 2.16×10-20 J

2. 0.16×10-20 J

3. 5.03×10-20 J

4. 8.32×10-20 J

Subtopic:  Planck's Theory |
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How many electrons can fit in the subshell for which n = 3 and l = 1?
1. 2
2. 6
3. 10
4. 14

Subtopic:  AUFBAU Principle |
 73%
From NCERT
NEET - 2016
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A pair of d-orbitals having electron density along the axes is: 

1. dz2, dxz

2. dxz, dzy

3. dz2, dx2-y2

4. dxy, dx2-y2

Subtopic:  Shell & Subshell |
 83%
From NCERT
NEET - 2016
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Links
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The 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.
Subtopic:  AUFBAU Principle |
 79%
From NCERT
NEET - 2018
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The number of d-electrons in Fe2+ (Z = 26) is not equal to the number of:
1. s-electrons in Mg (Z = 12)
2. p-electrons in Cl (Z = 17)
3. d-electrons in Fe (Z = 26)
4. p-electrons in Ne (Z = 10)

Subtopic:  AUFBAU Principle |
 64%
From NCERT
NEET - 2015
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The angular momentum of electrons in d orbital is equal to:
1. 6 h
2. 2h
3. 23 h
4. 0 h

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 77%
NEET - 2015
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What is the maximum number of orbitals that can be identified with the following quantum numbers?
n = 3, l = 1, m = 0

1. 1 2. 2
3. 3 4. 4
Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 59%
From NCERT
AIPMT - 2014
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The value of Planck's constant is 6.63 × 10–34 Js. The speed of light is 3 × 1017 nm s–1. Which value is closest to the wavelength in nanometer of a quantum of light with a frequency of 6 × 1015 s–1?
1. 25
2. 50
3. 75
4. 10
Subtopic:  Electromagnetic Radiation |
 86%
From NCERT
AIPMT - 2013
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Maximum number of electrons in a subshell with l = 3 and n = 4 is:

1. 14

2. 16

3. 10

4. 12

Subtopic:  Quantum Numbers & Schrodinger Wave Equation |
 84%
From NCERT
AIPMT - 2012
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The total number of atomic orbitals in fourth energy level of an atom is:

1.  16
2.  32
3.  4
4.  8

Subtopic:  Bohr's Theory |
 76%
From NCERT
AIPMT - 2011
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