NEET (UG)

ICSE Class 10 Nuclei — Mock Test (2027)

Free online mock test for Nuclei (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 Nuclei 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

  1. 1.The energy released (Q value) in the fission of a uranium nucleus is of the order of:
    • A.2 MeV
    • B.20 MeV
    • C.200 MeV
    • D.2000 MeV
  2. 2.A heavy nucleus with A = 240 (binding energy per nucleon 7.6 MeV) splits into two equal fragments of A = 120 (binding energy per nucleon 8.5 MeV). The Q-value of this fission is about:
    • A.108 MeV
    • B.180 MeV
    • C.216 MeV
    • D.240 MeV
  3. 3.Chlorine has two isotopes of mass 34.98 u and 36.98 u with relative abundances 75.4% and 24.6%. The average atomic mass of chlorine is about:
    • A.35.47 u
    • B.36.00 u
    • C.34.98 u
    • D.71.96 u
  4. 4.In the proton-proton cycle in the Sun, the net effect of combining four hydrogen nuclei is the formation of one helium-4 nucleus with a release of about:
    • A.0.42 MeV
    • B.3.27 MeV
    • C.26.7 MeV
    • D.200 MeV
  5. 5.Fusion of hydrogen nuclei into helium nuclei is the source of energy of:
    • A.Nuclear reactors on Earth
    • B.All stars including our Sun
    • C.Chemical combustion
    • D.Radioactive decay only

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