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p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
Oxalic acid when heated with conc. ${H_2}S{O_4},$ gives out
  • A
    ${H_2}O$ and $C{O_2}$
  • ✓
    $CO$ and $C{O_2}$
  • C
    Oxalic sulphate
  • D
    $C{O_2}$ and ${H_2}S$
✓

Answer

Correct option: B.
$CO$ and $C{O_2}$
b
(b) $\begin{array}{*{20}{l}}
  {COOH} \\ 
  | \\ 
  {COOH} 
\end{array}\xrightarrow{{conc.{H_2}S{O_4}}}{\mkern 1mu} \ {H_2}O + CO{\mkern 1mu}  + C{O_2}$

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