MCQ
Conc. $HN{O_3}$ can be stored in container of
- ✓$Al$
- B$Sn$
- C$Cu$
- D$Zn$
$2 Al +\underset{\text { conc. }}{6 HNO _3} \rightarrow Al _2 O _3+6 NO _2+3 H _2 O$
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$X$ and $Y$ respectively are :-
In the above reaction, $3.9\, g$ of benzene on nitration gives $4.92\, g$ of nitrobenzene. The percentage yield of nitrobenzene in the above reaction is............. $\%$. (Round off to the Nearest Integer).
(Given atomic mass: $C : 12.0\, u , H : 1.0\, u$$O : 16.0\, u , N : 14.0\, u )$
Standard entropy change for the above reaction is .....$J\,{K^{ - 1}}\,mo{l^{ - 1}}$