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  3. Chemistry
  4. Two students X and Y report the mass of the same substance as 7.0 g and 7.00 g respectively, which of the following statement is correct?

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Q. Two students $X$ and $Y$ report the mass of the same substance as $7.0 g$ and $7.00 g$ respectively, which of the following statement is correct?

Some Basic Concepts of Chemistry

Solution:

$7.00$ is more accurate than $7.0$ because the former has three significant figures while the later has two