Class 9 Chemistry MCQs – Practice Test 1 (Chapter 7)

Structure of Atoms MCQs with Answers PDF – Test 1

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Free Structure of Atoms Learning App Download: Water that contains H-2 atoms is called; MCQ with answers: light water, heavy water, pure water, and chlorinated water. Solve Electronic Configuration MCQ Questions, download Google e-Book (Free Chapter) to support lifelong learning.

Structure of Atoms MCQs PDF Download – Test 1

MCQ 1: If n = 3 we are in:

K shell
L shell
M shell
F shell

MCQ 2: Water that contains H-2 atoms is called:

heavy water
light water
pure water
chlorinated water

MCQ 3: Electron revolves around the nucleus in orbits which have:

variable energy
fixed energy
infinite energy
zero energy

MCQ 4: In Rutherford's experiment, α particles were deflected because of:

electrostatic repulsion between α particles and positively charged part of atom
electrostatic attraction between α particles and positively charged part of atom
electrostatic repulsion between β particles and positively charged part of atom
electrostatic attraction between γ particles and positively charged part of atom

MCQ 5: The energy of an electron in orbit is proportional to:

distance between shells
distance from nucleus
distance between two nuclei
positive charge inside nucleus

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