• question_answer The hybridisation of carbons of $C-C$single bond of $HC\equiv C-CH=C{{H}_{2}}$is [RPMT 2002] A) $s{{p}^{3}}-s{{p}^{3}}$ B) $sp-s{{p}^{2}}$ C) $s{{p}^{3}}-sp$ D) $s{{p}^{2}}-s{{p}^{3}}$

$HC\equiv \underset{sp\,\,\,\,\,\,s{{p}^{2}}}{\mathop{C-CH}}\,=C{{H}_{2}}$