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81.4 g sample of enthyl ethyl alcohol co...

`81.4 g` sample of enthyl ethyl alcohol contains `0.002 g` of water. The amount of pure ethyl alcohol to the proper number of significant figures is

A

`81.398g`

B

`81.40g`

C

`81.4g`

D

`81g`

Text Solution

Verified by Experts

The correct Answer is:
C
`81.4 rarr` (digits after decimal =1)
`0.002 rarr`( digits after decimal =3)
`overset(-------)underset(-------)(81.402)`
Round off to one decimal place so ans is `81.4`
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