SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many sig figs are there?27000000
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2
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5
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8
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None of the above
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Explanation:
Detailed explanation-1: -The full proof way to always round correctly is to use Scientific Notation. The number of digits in the mantissa is the number of sig. figs. Rounding 1, 000, 000 to 3 sig.
Detailed explanation-2: -The right-end zeros after the 5 are significant. The original number of 15, 000, 000 only has two significant figures.
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