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Model Paper 6 — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceModel Paper 61 Mark
MCQ
Assertion (A): Isobars are identical in chemical properties.
Reason (R): Isobars have same atomic number.
  • 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.
  • ✓
    A is false but R is true.
✓

Answer

Correct option: D.
A is false but R is true.
(d) A is false but R is true.
Explanation: Isobars are not identical in chemical properties because they have same mass number and different atomic numbers.

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