ICSE Class 10 Atoms — Mock Test (2027)
Free online mock test for Atoms (ICSE Class 10 Physics) — 72 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Atoms chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.As the principal quantum number n increases, the energies of the excited states of hydrogen:
- A.Spread farther and farther apart
- B.Come closer and closer together
- C.Remain equally spaced
- D.Become more negative
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2.Assertion (A): The ionisation energy of hydrogen in its ground state is 13.6 eV. Reason (R): The ground state energy is -13.6 eV, and freeing the electron requires raising its energy to 0 eV.
- A.Both A and R are true and R is the correct explanation of A
- B.Both A and R are true but R is NOT the correct explanation of A
- C.A is true but R is false
- D.A is false but R is true
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3.Using En = -13.6/n^2 eV, the energy required to excite a hydrogen atom from the ground state (n = 1) to the first excited state (n = 2) is:
- A.3.40 eV
- B.10.2 eV
- C.13.6 eV
- D.12.09 eV
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4.Rutherford's experiments suggested the size of the nucleus to be about:
- A.10^-10 m to 10^-9 m
- B.10^-15 m to 10^-14 m
- C.10^-7 m to 10^-6 m
- D.10^-20 m to 10^-18 m
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5.The energy required to excite a hydrogen atom from the ground state (n = 1) to the second excited state (n = 3) is:
- A.12.09 eV
- B.10.2 eV
- C.1.51 eV
- D.13.6 eV
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