E-PolyLearning

566. Transition elements have outer most sub-shell
a. s
b. p
c. d
d. f
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Answer: (c).d

567. Ground state electronic configuration of sodium is
a. (2, 2, 8)
b. (2, 2, 7)
c. (2, 2, 4)
d. (2, 8)
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Answer: (b).(2, 2, 7)

568. When 6d orbital is complete, the incoming electron goes to
a. 7f
b. 7s
c. 7p
d. 7d
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Answer: (c).7p

569. Two electrons in the same orbitals should have opposite spin is
a. Hund's Rule
b. Pauli's Exclusion Principle
c. Aufbau Principle
d. None of above
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Answer: (b).Pauli's Exclusion Principle

570. 1 Kg of electrons have charge equals
a. 1.6x10¹¹ Coulombs
b. 1.6x10¹² Coulombs
c. 1.75x10¹¹ Coulombs
d. 1.75x10¹² Coulombs
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Answer: (c).1.75x10¹¹ Coulombs