MCQ
The key step in cannizzaro’s reaction is the intermolecular shift of
- AProton
- ✓Hydride ion
- CHydronium ion
- DHydrogen bond
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$\mathop {Al}\limits_{metal} \xrightarrow[{(aq.)}]{{HCl}}'X' + Gas\,'P'$
$\mathop {Al}\limits_{metal} \xrightarrow[{ + {H_2}O}]{{NaOH\,(aq.)}}'Y' + Gas\,'Q'$

$2Zn + {O_2} \to 2ZnO;\Delta H = - 412\,J$