MCQ
Which of the following compound does not react with cold and dil. $HNO_3$ ?
- A$PbO$
- ✓$PbO_2$
- C$FeSO_4$
- D$PbCl_2$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Furan, Thiophene, Pyridine, Pyrrole, Cysteine, Tyrosine
$E^o (Fe^{+2}, Fe) = -0.44$ $ V$
$E^o (Zn^{+2}, Zn) = -0.76$ $ V$
$E^o (Cu^{+2}, Cu) = +0.34$ $V$
$E^o (Cr^{+2}, Cr) = -0.74$ $V$
$E^o (H^+, 1/2H_2) = -0.00$ $V$
The enzyme used in the above reaction is

$\begin{array}{*{20}{c}}
{C{H_3}\,\,\,\,\,\,\,O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - CH - C - C{H_2} - C{H_2}OH}
\end{array}$