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An english word,written in carbon pencil...

An english word,written in carbon pencil weighs 1mg. What is the number of carbon atoms present in the word?

A

`0.502 xx 10 ^(20)`

B

`6.02 xx 10 ^(20)`

C

`5.02 xx 10 ^(20)`

D

`5. 02 xx 10 ^(23)`

Text Solution

Verified by Experts

The correct Answer is:
A
Number of carbon atoms `= (1 . 0 xx 10 ^(-3))/( 12) xx 6. 02 xx 10 ^(23) = 0 .502 xx 10 ^(20)`
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