Question

Q 7. Anupama wrote an essay on air pollution in Delhi in the month
of December, 2019 with a graphite pencil. She was curious to know
the number of Carbon atoms which she used out of graphite pencil
to write the essay. For this, she took the mass of the pencil before
and after writing the essay and found that she used 0.001 g of the
carbon. (Atomic mass of C=12)
The total number of Carbon atoms used for writing the essay is
a) 5 x 1012
b) 5 x 1019
C) 5 x 1024
d) 5 x 1020​

Answer 1

Answer:

C) 5 x 1024

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Answer 2

Answer:

a

Explanation:

option a .............