- ✓$3-$hydroxy butanal
- B$2-$hydroxy butanal
- C$4-$hydroxy butanal
- D$3-$hydroxy butanol
$\mathop {2C{H_3}CHO\xrightarrow{{{\text{dil}}\,\,\,{\text{NaOH}}}}C{H_3} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,\,} }\limits_{OH} - C{H_2} - CHO}\limits_{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,3 - {\text{hydroxy}}\,\,{\text{butanal}}} $
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.


$Zn\left( s \right) + C{u^{2 + }}\left( {aq} \right) \rightleftharpoons Z{n^{2 + }}\left( {aq} \right) + Cu\left( s \right)$
Standard reaction enthalpy $\left( {{\Delta _r}{H^ - }} \right)$ ....... $\mathrm{kJ}$
$SO _{2} Cl _{2}+2 H _{2} O \rightarrow H _{2} SO _{4}+2 HCl$ $16\,moles$ of $NaOH$ is required for the complete neutralisation of the resultant acidic mixture. The number of moles of $SO _{2} Cl _{2}$ used is.