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

MCQ 16
Which of the following order is true with respect to mass number
A. H > H > H+
B. H+ > H– > H
C. H > H– > H+
D. H– = H = H+

Answer: D

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MCQ 17
SO4-2 and PO4-3 have same
A. Nuclear number
B. Number of electrons
C. Number of protons
D. Number of neutrons

Answer: B

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MCQ 18
Mass of proton is
A. 1.6726 × 10-27 g
B. 1.6726 × 10-24 Kg
C. 1.6726 x 10-21 mg
D. 1.6726 × 10-24 mg

Answer: C

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MCQ 19
Charge on 1 mole of proton is
A. 96500C
B. +1.6022 × 10-19C
C. 1.7588 × 1011C
D. 9.1095 x 1016C

Answer: A

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MCQ 20
Which of the following particle is expected to have minimum e/m ratio
A. Electron
B. Proton
C. Neutron
D. Helium
Answer: C

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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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