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Write the significance of plus and minus...

Write the significance of plus and minus signs in representing the orbitals

Text Solution

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Plus and minus signs have been given to identify the nature of the electron waves. Plus sign denotes crest while minus sign denotes trough.
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Knowledge Check

  • Which of the following sets of quantum numbers represents the orbitals of same shape and orientation in external field.

    A
    n = 3, l = 2, m = +1, s = +1/2
    B
    n = 3,l = 2, m= -1, s = - 1/2
    C
    n = 4,l = 2, m = + 1, s = - 1/2
    D
    n = 3,l = 2, m = 0, s = +1/2

  • Which of the following sets of quantum numbers represents the orbitals of same shape and orientation in external field.

    A
    n=3, l=2,, m = +1, s = +1/2
    B
    n=3, l=2,, m = -1, s = -1/2
    C
    `n=4, l=2, m = +-1, s = -1//2`
    D
    n=3, l=2,, m = 0, s = +1/2

  • (A) The rate of reaction is always negative. (R ) Minus sign used in expressing the rate shows that concentration of product is decreasing

    A
    Both (A) and (R ) are true and (R ) is the correct explanation of (A)
    B
    Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
    C
    (A) is true but (R ) is false
    D
    Both (A) and (R ) are false

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