MCQ
Which of the following does not contain copper
- ABrass
- BBronze
- CAzurite
- ✓Calamine
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Roasted gold ore $+CN^-+ H_2O \xrightarrow{{{O_2}}} [x] + OH^-;$ $[x] + Zn \rightarrow [y] + Au$
$[x]$ and $[y]$ are :
Statement $I :$ Aniline is less basic than acetamide.
Statement $II :$ In aniline, the lone pair of electrons on nitrogen atom is delocalised over benzene ring due to resonance and hence less available to a proton.
Choose the most appropriate option: