MCQ
Which one is incorrect :
- A$Zn + dil. HNO_3 \to Zn(NO_3)_2 + N_2O$
- B$Zn + conc. HNO_3 \to Zn(NO_3)_2 + NO_2$
- C$Zn + very dil. HNO_3 \to Zn(NO_3)_2 + NH_4NO_3$
- ✓$Cu + dil. HNO_3 \to Cu(NO_3)_2 + N_2O$
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$\mathrm{C}\mathrm{H}_{3} -\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{O}-\mathrm{C}\left(\mathrm{CH}_{3}\right)_{3} \xrightarrow[\Delta]{{\mathrm{excess} \mathrm{HI}}} \mathrm{C}+\mathrm{D}$
${{C}_{3}}{{H}_{7}}OH\underset{160-{{180}\,^{o}}C}{\mathop{\xrightarrow{Conc.{{H}_{2}}S{{O}_{4}}}}}\,X\underset{{}}{\mathop{\xrightarrow{B{{r}_{2}}}}}\,Y\underset{Alc.KOH}{\mathop{\xrightarrow{\text{Excess of}}}}\,Z$