Atom & its Structure MCQ Quiz – Part 4
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This Atom & its Structure MCQ Quiz helps aspirants revise important concepts related to the structure of atoms, subatomic particles, and atomic models, which are frequently asked in competitive exams. Regular practice of these MCQs improves conceptual understanding and helps candidates answer chemistry questions quickly and accurately.
GK Series – Chemistry – Atom & its Structure MCQ Quiz |
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| Subject | Chemistry |
| Chapter | Atom & its Structure |
| Part | 4 |
| Questions | 25 |
Who Should Attempt This Atom & its Structure MCQ Quiz?
This Atom & its Structure MCQ Quiz is useful for aspirants preparing for SSC, Railways, Defence, and other government job exams, where basic chemistry questions are commonly asked in the General Knowledge section.
Topics Covered in This Atom & its Structure MCQ Quiz
This Atom & its Structure MCQ Quiz is useful for aspirants preparing for SSC, Railways, Defence, and other government job exams, where basic chemistry questions are commonly asked in the General Knowledge section.
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Question 1 of 5
1. Question
Assertion (A): Atom is electrically neutral
Reason (R): Number of protons equals number of electronsCorrect
➤ Equal positive & negative charge → neutrality.
Incorrect
➤ Equal positive & negative charge → neutrality.
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Question 2 of 5
2. Question
Assertion (A): Isotopes have same chemical properties
Reason (R): They have same number of valence electronsCorrect
➤ Chemical behavior depends on valence electrons.
Incorrect
➤ Chemical behavior depends on valence electrons.
-
Question 3 of 5
3. Question
Which of the following is correct about nucleus?
Correct
➤ Nucleus = nucleons (p + n).
➤ Contains almost all mass.Incorrect
➤ Nucleus = nucleons (p + n).
➤ Contains almost all mass. -
Question 4 of 5
4. Question
Which of the following is true about noble gases?
Correct
➤ Full valence shell → inert nature.
➤ Example: He, Ne, Ar.Incorrect
➤ Full valence shell → inert nature.
➤ Example: He, Ne, Ar. -
Question 5 of 5
5. Question
Electronic configuration of Phosphorus (15) is
Correct
➤ 2,8,5 → 5 valence electrons.
➤ Valency = 3 or 5.Incorrect
➤ 2,8,5 → 5 valence electrons.
➤ Valency = 3 or 5.