• # question_answer The maximum number of stereoisomers possible for 2-hydroxy-2-methyl butanoic acid is [Roorkee 1992] A) 1 B) 2 C) 3 D) 4

$COOH-\underset{OH\,}{\overset{C{{H}_{3}}}{\mathop{\underset{|\,\,\,\,\,\,\,}{\overset{|\,\,\,\,\,\,\,\,}{\mathop{{{C}^{*}}\,-\,}}}\,}}}\,C{{H}_{2}}-C{{H}_{3}}$ One chiral centre. Therefore two forms are possible.