Chemistry - Atomic Structure: Prepare and Practice for Medical, Engineering Entrance Exams, NEET, IITJEE, NAT, IIST-ISAT and Admission Tests | Online Free Preparation

Chemistry MCQ Practice Questions on Atomic Structure / Structure of Atoms :

Sub-atomic Particles; Discovery of Fundamental Particles; Cathode Rays; Positive Rays; Rutherford Model; Moseley Experiment - Atomic Number; Isotopes and Isobars; Concept of Shells and Sub-shells; Electromagnetic Radiations; Emission Spectra; Hydrogen Spectrum; Atomic Models; Bohr’s Model of Atom; Sommerfeld’s Extension of Bohr Theory; Dual Nature of Matter and Light; Heisenberg Uncertainty Principle; Wave Mechanical Model of Atom; Concept of Orbital; Quantum Mechanical Model of Atom; Shapes of s, p and d Orbitals; Pauli’s Exclusion Principle; Aufbau Principlr; Hund’s Rule of Maximum Multiplicity (Orbital Diagrams); Electronic Configuration of Elements; Photoelectric Effect; Nuclear Stability; The Whole Number Rule and Packing Fraction; The Magic Numbers.       

Solved Chemistry MCQ Test Series: Atomic Structure or Structure of Atom

Multiple Choice Questions (MCQs) – Set 2 (Q. No. 11-20)

Question 11: Atomic number of an electron represents:

a. Number of neutrons in the nucleus

b. Atomic mass of an element

c. Valency of an element

d. Number of protons in the nucleus

Question 12: Radius of Bohr’s orbit of hydrogen atom is –

a. 0.24 Å

b. 0.48 Å

c. 0.53 Å

d. 1.06 Å

Question 13: Rutherford’s alpha ray scattering experiment showed for the first time that the atom has –

a. Nucleus

b. Proton

c. Electron

d. Neutron

Question 14: Principal quantum number of an atom represents

a. Size of the orbital

b. Spin angular momentum

c. Orbital angular momentum

d. Space orientation of the orbital 

Question 15: The number of unpaired electrons in magnesium atom is –

a. 0

b. 1

c. 2

d. 3

Question 16: How many photons of light having a wavelength of 5000 Å are necessary to provide 1 joule of energy?

a. 2.8 x 10¹⁸ photons

b. 2.5 x 10¹⁷ photons

c. 2.5 x 10¹⁸ photons

d. 2.6 x 10¹⁴ photons

Question 17: When alpha particles are sent through a thin metal foil, most of them go straight through the foil because

a. Alpha particles are much heavier than electrons

b. Alpha particles are positively charged

c. Most part of the atom is empty

d. Alpha particles move with high velocity

Question 18: Discovery of the nucleus of an atom was due to the experiment carried out by:

a. Bohr

b. Rutherford

c. Moseley

d. Thomson

Question 19: The species which has its fifth ionisation potential equal to 340 V is –

a. B⁺

b. C⁺

c. B

d. C

Question 20: The energy of a photon is inversely proportional to its –

a. Wavelength

b. Frequency

c. Wave number

d. Velocity

 India Study Solution - Solved Chemistry MCQ Test Series

Atomic Structure (Structure of Atom)

Solutions of Multiple Choice Questions (MCQ Test Series) – Set 2 (Q. No. 11 – 20)

http://www.indiastudysolution.com

Answer 11: (d).   Answer 12: (c).   Answer 13: (a).   Answer 14: (a).   Answer 15: (a).   Answer 16: (c).   Answer 17: (c).   Answer 18: (c).   Answer 19: (c).   Answer 20: (a).

<<Prev (Q.No 1-10)                                                     (Q.No 21-30) Next>>

 Chemistry: Structure of Atoms - More Practice Questions, Test Series 

• Structure of Atoms: Chemistry MCQ practice questions with solutions for MBBS Admission Tests, Engineering Entrance Exams, IITJEE, NEET, NAT, IIST (ISAT) and other competitive examinations 
• Atomic Structure | Structure of Atoms - Solved MCQ Test Series for IITJEE, NEET and other Entrance Exams

Prepare & Practice Online Test Series

BIOLOGY Guide

• Free Online Practice Questions with Solutions for NEET, AIPMT, Medical Entrance Exams and MBBS Admission Tests: Diversity in The Living World, Biological Classification 
• Animal Kingdom - Classification of Animals: Biology Questions and Answers for all Medical and Dental Entrance Exams, MBBS Admission Tests and other Competitions
• Free Online Preparation - Plant Kingdom and Classification of Plants: Biology MCQs for AIPMT and other Medical Entrance Exams, MBBS Admission Tests
• Human Reproduction, Reproductive Health - Biology Online Test Series for AIPMT, NEET, WBJEE, AFMC, OJEE, EAMCET, JIPMER, KIITJEE, COMEDK, BHU PMT, MBBS Entrance Tests 

CHEMISTRY Guide

• States of Matter - Chemistry Online Test Series for IITJEE, COMEDK, WB Joint Entrance, VIT, EAMCET, AIPMT, NEET, AIEEE, BITSAT, AFMC, OJEE, Bihar PMT, KIIT, BHU PMT
• Structure of Atoms: Chemistry MCQ practice questions with solutions for MBBS Admission Tests, Engineering Entrance Exams, IITJEE, NEET, NAT, IIST (ISAT) and other competitive examinations
• Classification of Elements, Periodic Table, Periodicity in Properties - MCQ Test Series for all Medical, Engineering Entrance Exams and Admission Tests