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Total Questions : 622 | Page 4 of 63 pages
Question 31. Configuration of 18 electrons (e⁻) in third principal quantum level in s=2, p=8 and d will be
  1.    18
  2.    10
  3.    12
  4.    11
 Discuss Question
Answer: Option B. -> 10
Answer: (b).10
Question 32. Avogadro's number is the collection of particles
  1.    6.02 x 10²³
  2.    2.06 x10²³
  3.    0.26 x 10²³
  4.    None of above
 Discuss Question
Answer: Option A. -> 6.02 x 10²³
Answer: (a).6.02 x 10²³
Question 33. Elements with more than 57 electrons require
  1.    f-orbital
  2.    d-orbital
  3.    p-orbital
  4.    s-orbital
 Discuss Question
Answer: Option A. -> f-orbital
Answer: (a).f-orbital
Question 34. The concept of Avogadro's number was given by
  1.    Newland
  2.    Mendeleev
  3.    Amedeo Avogadro
  4.    Al- Razi
 Discuss Question
Answer: Option C. -> Amedeo Avogadro
Answer: (c).Amedeo Avogadro
Question 35. Noble gases have complete
  1.    Duplet
  2.    Octet
  3.    Shells
  4.    Sub-shells
 Discuss Question
Answer: Option B. -> Octet
Answer: (b).Octet
Question 36. Transition elements have outer most sub-shell
  1.    s
  2.    p
  3.    d
  4.    f
 Discuss Question
Answer: Option C. -> d
Answer: (c).d
Question 37. When 6d orbital is complete, the incoming electron goes to
  1.    7f
  2.    7s
  3.    7p
  4.    7d
 Discuss Question
Answer: Option C. -> 7p
Answer: (c).7p
Question 38. Two electrons in the same orbitals should have opposite spin is
  1.    Hund's Rule
  2.    Pauli's Exclusion Principle
  3.    Aufbau Principle
  4.    None of above
 Discuss Question
Answer: Option B. -> Pauli's Exclusion Principle
Answer: (b).Pauli's Exclusion Principle
Question 39. 1 Kg of electrons have charge equals
  1.    1.6x10¹¹ Coulombs
  2.    1.6x10¹² Coulombs
  3.    1.75x10¹¹ Coulombs
  4.    1.75x10¹² Coulombs
 Discuss Question
Answer: Option C. -> 1.75x10¹¹ Coulombs
Answer: (c).1.75x10¹¹ Coulombs
Question 40. Ground state electronic configuration of sodium is
  1.    (2, 2, 8)
  2.    (2, 2, 7)
  3.    (2, 2, 4)
  4.    (2, 8)
 Discuss Question
Answer: Option B. -> (2, 2, 7)
Answer: (b).(2, 2, 7)

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