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Q.

What is the number of significant figures respectively are in Avogadro’s number 6.0×1023 and 6.62×10-34JsPlanck’s constant

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a

2, 2

b

1, 3

c

4, 5

d

2, 3

answer is D.

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Detailed Solution

NA6.0×1023 has two significant figures and h 6.62×1034Jsechas three significant figures which are 6.0 and 6.62 respectively.
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