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Home  >>  AIMS  >>  Class12  >>  Physics  >>  Electric Charges and Fields
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Estimate the number of free electrons in $10\;g$ of water and the negative charge possessed by them. Given: Avogadro’s number $= 6.02 × 10^{23}$ and molecular weight of water $= 18$

$\begin{array}{1 1}(A)\;1.135 \times 10^{3} \\ (B)\;3.344 \times 10^{34} \\(C)\;8.44 \times 10^{34} \\(D)\; 2.344 \times 10^{34}\end{array} $

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$3.344 \times 10^{34}$
Hence B is the correct answer.
answered May 28, 2014 by meena.p

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