MCQ
$Cu^{2+}$ shows a coordination number of
- A$2$ only
- B$2$ or $4$
- C$4$ only
- ✓$4$ or $6$
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$2PhCHO \xrightarrow{{:\mathop O\limits^ \ominus H}}PhC{H_2}OH + PhC\mathop {O_2^ \ominus }\limits^{.\,\,.\,\,} $
the slowest step is :