0.635 gram copper react with dilute \( \mathrm{HNO}_{3} \) solution...

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0.635 gram copper react with dilute \( \mathrm{HNO}_{3} \) solution
P
\[
3 \mathrm{Cu}+8 \mathrm{HNO}_{3} \rightarrow 3 \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}+2 \mathrm{NO}+\mathrm{H}_{2} \mathrm{O}
\]
W
What amount of \( \mathrm{NO} \) gas is formed?
(A) 0.2 mole
(B) 0.2 gram
(C) 0.01 gram
(D) 0.4 gram
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