(image) $\xrightarrow[{Pd/carbon,\,ethanol}]{{{H_2}\,(gas,\,\,1\,\,atmosphere)}}\,A$ શું હશે ?
${{C}_{6}}{{H}_{6}}+C{{H}_{3}}CH=C{{H}_{2}}\xrightarrow[heat]{{{H}_{3}}P{{O}_{4}}}A\xrightarrow[2.\,{{H}_{3}}{{O}^{+}},heat]{1.\,{{O}_{2}},heat}B+C$
$(B)$ એ $(C)$ અનુક્રમે શું હશે ?