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Model Paper 5 — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryModel Paper 51 Mark
MCQ
Assertion (A): 232.508 can be written as $2.32508 \times 10^2$ in scientific notation.
Reason (R): While writing $2.32508 \times 10^2$, the decimal had to be moved to the left by two places and the same is the exponent (2) of 10 in the scientific notation.
  • ✓
    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
    Both A and R are false.
✓

Answer

Correct option: A.
Both A and R are true and R is the correct explanation of A.
(a) Both A and R are true and R is the correct explanation of A .
Explanation: 232.508 can be written as $2.32508 \times 10^2$ in scientific notation. While writing it, the decimal had to be moved to the left by two places and the same is the exponent (2) of 10 in the scientific notation.

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