1:   Which of the following orbitals has dumbbell shape
Options:
  1. s
  2. p
  3. d
  4. f

Answer: Option 4

Explanation:

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2:   Which of the following atoms or atom/ ion have identical ground state configuration
Options:
  1. Li+ and He+
  2. Cl- and Ar
  3. Na and K
  4. none of these

Answer: Option 2

Explanation:

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3:   The number of spherical nodes for 4d orbital is
Options:
  1. 0
  2. 1
  3. 2
  4. 3

Answer: Option 2

Explanation:

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4:   For which of the following et of quantum numbers, an electron will have the highest energy
Options:
  1. 3,2,+1,+1/2
  2. 4,2,-1,+1/2
  3. 4,1,0,-1/2
  4. 5,0,0,+1/2

Answer: Option 3

Explanation:

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5:   g sub shell is characterized by
Options:
  1. n=5
  2. m=3
  3. l=4
  4. l=5

Answer: Option 3

Explanation:

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6:   The configuration 1s22s22p53s1 shows
Options:
  1. ground state of fluorine
  2. excited state of fluorine
  3. excited state of neon
  4. none of these

Answer: Option 3

Explanation:

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7:   In hydrogen spectrum, spectral lines of Lyman series are present in region of
Options:
  1. UV
  2. IR
  3. visible
  4. none of these

Answer: Option 1

Explanation:

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8:   In a sodium ion, number of electrons will be
Options:
  1. 10
  2. 11
  3. 12
  4. 9

Answer: Option 1

Explanation:

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9:   If travelling at same speed, which of the following natter waves have the shortest wavelength
Options:
  1. electron
  2. proton
  3. neutron
  4. alpha particles

Answer: Option 4

Explanation:

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10:   Number of angular nodes for 4d orbital is
Options:
  1. 4
  2. 3
  3. 2
  4. 1

Answer: Option 3

Explanation:

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