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Class 11 Chemistry Practice Test: Basic Concepts of Chemistry - Uncertainty in Measurement
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Class 11 Chemistry Practice Test: Basic Concepts of Chemistry - Uncertainty in Measurement
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10 Questions

1. The exact value is 150m. A students record it as 140.1m in 1st turn and 140.8m in the 2nd turn. Comment his/her recordings.
2. The exact value is 150m. A students record it as 140.1m in 1st turn and 140.8m in the 2nd turn. Comment his/her recordings.
3. The exact value is 150m. A students record it as 149.1m in 1st turn and 150.8m in the 2nd turn. Comment his/her recordings.
4. How many significant figures does 0.057 have?
5. Multiply 1.2 and 3.91. Obtain the result as per the rules of significant figures.
6. How many seconds are there in a half day?
7. Write 6354000000 in scientific notation.
8. Multiply 1.2 and 3.91. Obtain the result as per the rules of significant figures.
9. A piece of iron is 5 inches long. How much would it be in centimeters?
10. How many significant figures does 0.057 have?

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