Online NMDCAT Chemistry Preparation (MCQ-based Lectures + Practice Tests)

MCQ 26
Shapes of orbitals were explained by
A. Principal quantum number
B. Azimuthal quantum number
C. Magnetic quantum number
D. Spin quantum number

Answer: B

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MCQ 27
s, p, d and f represents_________ respectively.
A. Spherical, principal, diffused, fundamental
B. Sharp, principal, diffused, fundamental
C. Sharp, principal, dispersed, fundamental
D. Sharp, principal, dumb-bell, fundamental

Answer:  B

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MCQ 28
Which of the following is true relationship between principal and azimuthal quantum number?
A. n = l
B. n > l
C. n< l
D. n = ±l

Answer: B

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MCQ 29
Number of subshells in a shell are determined by using
A. n
B. 2n2
C. n²
D. n²/2

Answer: B

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MCQ 30
The simplest shape is associated with
A. s-orbital
B. p-orbital
C. d-orbital
D. f-orbital

Answer: A

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This Post Has 6 Comments

    1. Hifsa Pervez October 1, 2022 Reply

      Shapes of orbitals were explained by magnetic or azimuthal quantum number? Answer below the question is given magnetic quantum number but in the explanation video of this question answer is given azimuthal quantum number.

      1. Umair Ali khan October 5, 2022 Reply

        Azimuthal. The discussion has correct answers. Please mention the question number, therefore, it is corrected.

  2. Haseeb UR Rehman July 26, 2022 Reply

    In ethanol and methanol, which has greater hydrogen bonding?

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